Alex Amato's Home Page -- PSI
 Alex
Amato
Laboratory for Muon-Spin Spectroscopy
WLGA/123
5232 Villigen PSI
Switzerland
Phone: +41 (0)56 310 32 32
Fax: +41 (0)56 310 32 94
Email: alex.amato@psi.ch
Visit some of the people (and friends) that I collaborate with:
Daniel Andreica (Babes-Bolyai
University)
Anne de Visser
(University of Amsterdam)
Mike Graf
(Boston College)
Philippe Mendels (Paris)
Jun Sugiyama (Toyota Research
Center)
Oliver Stockert (MPI Dresden)
Hans-Henning Klauss (TU Dresden)
My
Curriculum Vitae:
- 1984-1988: PhD Thesis -- Université de Genčve (in collaboration
with the CRTBT-CNRS Grenoble)
Thesis tile: Transport Properties of the Heavy-Fermion Compounds CeCu6
and CeRu2Si2
If you speak French and have a rapid internet connection, you can download my
thesis from here.
- 1988-1989: PostDoc position at the Université de Genčve (group of
Prof. J. Sierro)
- 1989-1990: PostDoc position at the University of California at
Berkeley (group of Prof. N. Phillips)
- 1990-1996: Scientific Collaborator at the ETH-Zurich (group of Dr.
A. Schenck)
- Since 1996: Scientific Collaborator at the Paul Scherrer Institute
(Villigen, Switzerland)
- Since 2004: Head of the bulk-µSR group at the Paul Scherrer
Institute (Villigen, Switzerland)
My
Research Interests:
My main research topic is the study of so-called heavy-fermion systems.
I am in particular interested by the novel magnetic properties of these
compounds and by the occurrence of inconventional superconductivity.
I have written, or I am co-author, of numerous articles on this topic, but the
interested reader can gain a rapid overview by looking at my
review article published
in Reviews of Modern Physics.
Recently I was dragged into the study of the new pnictides superconductors...
List of invited talks
- International Conference on Strongly Correlated Systems,
San Diego, USA, August 1993.
Invited Talk
Magnetism in Heavy-Fermion Systems probed by µSR
- International Conference on Strongly Correlated Systems,
Amsterdam, The Netherlands, August 1994.
Invited Talk
Correlated Electron Systems Studied by µ+SR
- 2nd Colloquium on f Systems,
Prague, August 1994.
Invited Talk
Magnetism and Superconductivity In CeCu2Si2
- 7th International Conference on Muon Spin Rotation/Relaxation/Resonance,
Nikko, Japan, April 1996.
Invited Talk
µ+-site Determination in Heavy-Fermion Systems
- Paul Scherrer Institute, Villigen, Switzerland, June 1997.
Invited Seminar
Features of a New Real-Time Data Acquisition System at PSI
- 3rd International Conference on f Elements,
Paris, September 1997.
Invited Talk
Study of Fermi-Liquid Instabilities by µSR Spectroscopy
- Workshop on Strongly Correlated Systems and Superconductivity
Planneralm, Austria, February 1998.
Invited Lecture
Advantages (and Difficulties) of the µSR Technique in Studying Heavy-Fermion Systems:
an Introduction
- Tohoku University, Japan, April 1999.
Invited Seminar
µSR Technique: A Complementary Tool to Study the Strongly Correlated
Electron Systems
- Hiroshima University, Japan, April 1999.
Invited Seminar
µSR Technique: A Complementary Tool to Study the Strongly Correlated Electron
Systems
- Osaka University, Japan, April 1999.
Invited Seminar
µSR Technique: A Complementary Tool to Study the Strongly Correlated Electron
Systems
- Kumamoto University, Japan, April 1999.
Invited Seminar
µSR Technique: A Complementary Tool to Study the Strongly Correlated Electron Systems
- MuSR User Meeting 2001,
Paul Scherrer Institute, Villigen, Switzerland, January 2001.
Invited Talk
Critical Point(s) and Unconventional Superconductivity in UPt3
- Universität Zürich, Switzerland, February, 2001.
Invited Seminar
Critical Point(s) and Unconventional Superconductivity in UPt3
- Workshop on the Magnetic nanostructures of CeNi1-xCux systems
Castro Urdiales, Spain, May - June 2001,
Invited Lecture
Introduction to the µSR Technique
- International Workshop on Fermi-Liquid Instabilities in Correlated Metals
Dresden, Germany, June 2003.
Invited Talk
Interplay Magnetism/Superconductivity: Some µSR Studies
- Paul Scherrer Institute,
Villigen, Switzerland, February 2002.
Invited Seminar
Complementarity between µSR, neutron and X-ray diffraction/spectroscopy studies
- Advances in Neutron, Synchrotron Radiation, µSR and NMR Researches,
Tokai, Ibaraki, Japan, August 2006.
Invited Talk
Studies of Heavy-Fermion Superconductors by µSR Technique
-
First Swiss/Japanese Workshop on the Applications and on New Developments in Muon Spin Spectroscopy on Novel Material
Tsukuba, Japan, September, 2006
Invited Talk
µSR Study of Heavy Fermion Superconductors
- First Swiss/Japanese Workshop on the Applications and on New Developments in Muon Spin Spectroscopy on Novel Material
Tsukuba, Japan, September, 2006
Invited Talk
High-Pressure µSR at the Paul Scherrer Institute
- 7th PSI Summer School on Condensed Matter Research
Zuoz, Switzerland, August 2008.
Invited Lecture
Bulk μSR: A tool to investigate nanometer scale phenomena
List of publications:
The papers in this list are the
result of work performed at the "Université
de Genève", the CRTBT-CNRS
Grenoble (presently Institut Néel), the
University of
California at Berkeley, at the
ETH-Zurich, and at the Paul
Scherrer Institute.
In
opposite order of publication dates.
[1] muSR investigation of CeCo4B
R. Tetean, D. Andreica, I.G. Deac, E. Burzo, L. Chioncel, and A. Amato,
Physica B 374, 188 (2006).
[2] Evidence of two dimensionality in quasi-one-dimensional cobalt oxides
J. Sugiyama, H. Nozaki, Y. Ikedo, K. Mukai, D. Andreica, A. Amato, J.H. Brewer, E.J. Ansaldo, G.D. Morris, T. Takami, and H. Ikuta,
Physical Review Letters 96, 197206 (2006).
[3] Static magnetic order in metallic K0.49CoO2
J. Sugiyama, H. Nozaki, Y. Ikedo, K. Mukai, J.H. Brewer, E.J. Ansaldo, G.D. Morris, D. Andreica, A. Amato, T. Fujii, and A. Asamitsu,
Physical Review Letters 96, 037206 (2006).
[4] Magnetic order and superconductivity in single-crystalline CeCu2Si2
O. Stockert, D. Andreica, A. Amato, H.S. Jeevan, C. Geibel, and F. Steglich,
Physica B 374, 167 (2006).
[5] Anisotropy and two-gap contributions to flux lattice in MgB2 superconductor and Mg1-xAlxB2 alloys
S. Serventi, G. Allodi, R. De Renzi, L. Romano, P. Manfrinetti, A. Palenzona, A. Amato, and C. Baines,
Physica B 374, 235 (2006).
[6] muSR study of frustrated S = 1/2 Delafossites YCuO2+d
A. Olariu, D. Bono, F. Bert, P. Mendels, C. Darie, P. Bordet, A.D. Hillier, C. Baines, and A. Amato,
Physica B 374, 152 (2006).
[7] Pressure-induced ferromagnet to spin-glass transition in Gd2Mo2O7
I. Mirebeau, A. Apetrei, I. Goncharenko, D. Andreica, P. Bonville, J.P. Sanchez, A. Amato, E. Suard, W.A. Crichton, A. Forget, and D. Colson,
Physical Review B 74, 174414 (2006).
[8] Series of bulk magnetic-phase transitions in NaxCoO2: A muSR study
P. Mendels, D. Bono, J. Bobroff, G. Lang, G. Collin, D. Colson, N. Blanchard, H. Alloul, I. Mukhamedshin, F. Bert, A. Amato, and A.D. Hillier,
Physica B 374, 278 (2006).
[9] Inhomogeneous magnetism in the CeNi/Cu pseudobinary compounds
N. Marcano, G.M. Kalvius, D.R. Noakes, J.I. Espeso, J.C.G. Sal, C. Baines, and A. Amato,
Physica B 374, 17 (2006).
[10] muSR study of the triangular-lattice antiferromagnet CsNiBr3
P.C.M. Gubbens, D. Visser, P.D. de Reotier, A. Yaouanc, A. Amato, S.P. Cottrell, and P.J.C. King,
Physica B 374, 160 (2006).
[11] Feeling defects in Zircaloy by extended X-ray absorption fine structure and muon spin relaxation analyses
C. Degueldre, S. Conradson, A. Amato, and E. Campitelli,
Journal of Nuclear Materials 352, 126 (2006).
[12] Muon spin relaxation measurements on zirconia samples
C. Degueldre, A. Amato, and G. Bart,
Scripta Materialia 54, 1211 (2006).
[13] Spin dynamics and magnetic order in magnetically frustrated Tb2Sn2O7
P. Dalmas de Réotier, A. Yaouanc, L. Keller, A. Cervellino, B. Roessli, C. Baines, A. Forget, C. Vaju, P.C.M. Gubbens, A. Amato, and P.J.C. King,
Physical Review Letters 96, 127202 (2006).
[14] Studies of R2Ti2O7 (R = Gd and Yb); new results
P. Dalmas de Réotier, V. Glazkov, C. Marin, A. Yaouanc, P.C.M. Gubbens, S. Sakarya, P. Bonville, A. Amato, C. Baines, and P.J.C. King,
Physica B 374, 145 (2006).
[15] Evidence for an antiferromagnetic component in the magnetic structure of ZrZn2
P. Dalmas de Réotier, G. Lapertot, A. Yaouanc, P.C.M. Gubbens, S. Sakarya, and A. Amato,
Physics Letters A 349, 513 (2006).
[16] Driven vortices in type-II superconductors: A muon spin rotation study
D. Charalambous, E.M. Forgan, S. Ramos, S.P. Brown, R.J. Lycett, D.H. Ucko, A.J. Drew, S.L. Lee, D. Fort, A. Amato, and U. Zimmermann,
Physical Review B 73, 104514 (2006).
[17] Muon spin relaxation studies of superconductivity in a crystalline array of weakly coupled metal nanoparticles
D. Bono, A. Schnepf, J. Hartig, H. Schnockel, G.J. Nieuwenhuys, A. Amato, and L.J. de Jongh,
Physical Review Letters 97, 077601 (2006).
[18] Low-T dynamics in the highly frustrated S =3/2 kagome bilayers: A phenomenological function for a spin liquid state?
D. Bono, P. Mendels, G. Collin, N. Blanchard, F. Bert, A. Amato, C. Baines, and A.D. Hillier,
Physica B 374, 138 (2006).
[19] The Verwey transition in Fe3O4: A single crystal muon investigation
M. Bimbi, G. Allodi, R. De Renzi, G. Mazzoli, H. Berger, and A. Amato,
Physica B 374, 51 (2006).
[20] Direct evidence for a dynamical ground state in the highly frustrated Tb2Sn2O7 pyrochlore
F. Bert, P. Mendels, A. Olariu, N. Blanchard, G. Collin, A. Amato, C. Baines, and A.D. Hillier,
Physical Review Letters 97, 117203 (2006).
[21] Dynamics in pure and substituted volborthite kagome-like compounds
F. Bert, P. Mendels, D. Bono, A. Olariu, F. Ladieu, J.C. Trombe, F. Duc, C. Baines, A. Amato, and A. Hillier,
Physica B 374, 134 (2006).
[22] Anisotropic magnetic moments in LaSrMnO4
C. Baumann, G. Allodi, A. Amato, B. Buchner, D. Cattani, R. De Renzi, R. Klingeler, P. Reutler, and A. Revcolevschi,
Physica B 374, 83 (2006).
[23] Demonstrating multibit magnetic memory in the Fe8 high-spin molecule by muon spin rotation
O. Shafir, A. Keren, S. Maegawa, M. Ueda, A. Amato, and C. Baines,
Physical Review B 72, 92410 (2005).
[24] Cascade of bulk magnetic phase transitions in NaxCoO2 as studied by muon spin rotation
P. Mendels, D. Bono, J. Bobroff, G. Collin, D. Colson, N. Blanchard, H. Alloul, I. Mukhamedshin, F. Bert, A. Amato, and A.D. Hillier,
Physical Review Letters 94, 136403 (2005).
[25] Inhomogeneous magnetic order in Th-doped UPt3 detected by µSR
A. de Visser, M.J. Graf, C.P. Opeil, J.C. Cooley, J.L. Smith, A. Amato, C. Baines, F. Gygax, and A. Schenck,
Physica B 359-361, 1063 (2005).
[26] Unconventional superconductivity and magnetism in CePt3Si1-xGex
E. Bauer, G. Hilscher, H. Michor, M. Sieberer, E.W. Scheidt, A. Gribanov, Y. Seropegin, P. Rogl, A. Amato, and W.Y. Song,
Physica B 359-361, 360 (2005).
[27] Coexistence of magnetism and superconductivity in the heavy-fermion superconductor CePt3Si
A. Amato, E. Bauer, and C. Baines,
Physical Review B 71, 092501 (2005).
[28] Muon Spin Rotation
A. Amato and D. Andreica,
in Encyclopedia of Condensed Matter Physics, edited by G. Bassani, G. Liedl and P. Wyder (Elsevier, 2005), p. 41.
[29] Correlation between magnetic and electronic properties of the perovskite HoBaCo2O5
U. Staub, F. Fauth, E. Suard, A. Amato, V. Caignaert, and D. Herlach,
Journal of Physics: Condensed Matter 16, 3361 (2004).
[30] Effect of two gaps on the flux lattice internal field distribution: evidence of two length scales from µSR in Mg1-xAlxB2
S. Serventi, G. Allodi, R. De Renzi, G. Guidi, L. Romanò, P. Manfrinetti, A. Palenzona, C. Niedermayer, A. Amato, and C. Baines,
Physical Review Letters 93, 217003 (2004).
[31] Oxygen doped S = 1/2 Cu delafossites: a muon spin rotation/relaxation study
P. Mendels, D. Bono, F. Bert, O. Garlea, C. Darie, P. Bordet, V. Brouet, M.H. Julien, A.D. Hillier, and A. Amato,
Journal of Physics: Condensed Matter 16, S799 (2004).
[32] The muon spin response to intermittent hyperfine interaction: modelling the high-temperature electrical activity of hydrogen in silicon
J.S. Lord, S.F.J. Cox, M. Charlton, D.P. Van der Werf, R.L. Lichti, and A. Amato,
Journal of Physics: Condensed Matter 16, S4739 (2004).
[33] Neutron diffraction, Specific heat and µSR study of the spin-chain compounds Ca2+xY2-xCu5O10
V. Kargl, A. Mirmelstein, P. Böni, D. Sheptyakov, A. Amato, S. Kazakov, J. Karpinski, and A. Erb,
Physica B 350, e257 (2004).
[34] Muon Spin Relaxation Measurements of NaxCoO2·yH2O
A. Kanigel, A. Keren, L. Patlagan, K.B. Chashka, P.J.C. King, and A. Amato,
Physical Review Letters 92, 257007 (2004).
[35] A local study of dynamic and static magnetism in the Kagome bilayer compound Ba2Sn2ZnCr6.8Ga3.2O22
D. Bono, P. Mendels, G. Collin, N. Blanchard, C. Baines, and A. Amato,
Journal of Physics: Condensed Matter 16, S817 (2004).
[36] µSR study of the quantum dynamics in the frustrated S=3/2 kagomé bilayers
D. Bono, P. Mendels, G. Collin, N. Blanchard, F. Bert, A. Amato, C. Baines, and A. Hillier,
Physical Review Letters 93, 187201 (2004).
[37] Dilution in volborthite S = 1/2 frustrated magnet: a µSR and NMR study
F. Bert, D. Bono, P. Mendels, J.C. Trombe, P. Millet, A. Amato, C. Baines, and A. Hillier,
Journal of Physics: Condensed Matter 16, S829 (2004).
[38] Novel superconductivity and magnetism in CePt3Si
E. Bauer, G. Hilscher, H. Michor, M. Sieberer, E.W. Scheidt, A. Gribanov, Y. Seropegin, P. Rogl, W.Y. Song, J.G. Park, D.T. Adroja, A. Amato, M. Nicklas, G. Sparn, M. Yogi, and Y. Kitaoka,
Czechoslovak Journal of Physics 54, D401 (2004).
[39] Weak-magnetism phenomena in heavy-fermion superconductors: selected µSR studies
A. Amato, M.J. Graf, A. de Visser, H. Amitsuka, D. Andreica, and A. Schenck,
Journal of Physics: Condensed Matter 16, S4403 (2004).
[40] µSR studies of superconducting MgB1.96C0.04
K. Papagelis, J. Arvanitidis, I. Margiolaki, K. Brigatti, K. Prassides, A. Schenck, A. Lappas, A. Amato, Y. Iwasa, and T. Tkenobu,
Physica B 326, 346 (2003).
[41] Muon location and muon dynamics in DyNi5
A.M. Mulders, C.T. Kaiser, S.J. Harker, P.C.M. Gubbens, A. Amato, F.N. Gygax, A. Schenck, P. Dalmas de Réotier, A. Yaouanc, K.H.J. Buschow, and A.A. Menovsky,
Physical Review B 67, 014303 (2003).
[42] The interplay of charge order and magnetism in the one-dimensional quantum spin system Sr14Cu24O41
D. Mienert, H.H. Klauss, A. Bosse, D. Baabe, H. Luetkens, M. Birke, F.J. Litterst, B. Buchner, U. Ammerahl, A. Revcolevschi, A. Amato, U. Zimmermann, B. Hitti, and S.R. Kreitzman,
Physica B 326, 440 (2003).
[43] Spin dynamics in the quantum spin system KCu5V3O13
H.H. Klauss, P. Lemmens, M. Birke, D. Baabe, D. Mienert, F.J. Litterst, A. Amato, J. Pommer, A. Ionescu, K.Y. Choi, G. Guntherodt, H. Kageyama, Z. Hiroi, and M. Takigawa,
Physica B 326, 436 (2003).
[44] High-pressure µSR studies on La1.65Eu0.20Sr0.15CuO4
H.H. Klauss, D. Baabe, D. Mienert, H. Luetkens, F.J. Litterst, B. Buchner, M. Hucker, D. Andreica, U. Zimmermann, and A. Amato,
Physica B 326, 325 (2003).
[45] Universal superconducting and magnetic properties of the (CaxLa1-x)(Ba1.75-xLa0.25+x)Cu3Oy system: a µSR investigation
A. Keren, A. Kanigel, J.S. Lord, and A. Amato,
Solid State Communications 126, 39 (2003).
[46] µSR investigation of a cluster of monodisperse Pd nanoparticles
C.T. Kaiser, P.C.M. Gubbens, F.M. Mulder, P. Dalmas de Réotier, A. Yaouanc, P. Paulus, L.J. de Jongh, G. Schmid, P.J.C. King, and A. Amato,
Physica B 326, 484 (2003).
[47] Onset of antiferromagnetism in UPt3 via Th substitution studied by muon spin spectroscopy
M.J. Graf, A. de Visser, C.P. Opeil, J.C. Cooley, J.L. Smith, A. Amato, C. Baines, F. Gygax, and A. Schenck,
Physical Review B 68, 224421 (2003).
[48] Vortex motion in type II superconductors probed by muon spin rotation and SANS
E.M. Forgan, D. Charalambous, P.G. Kealey, P.J.C. King, R. Khasanov, and A. Amato,
Physica B 326, 342 (2003).
[49] The electrical activity of hydrogen and muonium in silicon at high temperatures
S.F.J. Cox, N. Gidopoulos, J.S. Lord, M. Charlton, D.P. Van der Werf, A. Amato, and R.L. Lichti,
Physica B 342, 641 (2003).
[50] Inhomogeneous spin order in the magnetic phase of electron-doped high-Tc superconductors
D. Baabe, H.H. Klauss, D. Mienert, M. Birke, P. Adelmann, B. Hitti, U. Zimmermann, A. Amato, and F.J. Litterst,
Physica B 326, 338 (2003).
[51] Nonmagnetic-magnetic transition in Yb(Cu1-xNix)2Si2 studied by muon-spin relaxation
D. Andreica, A. Amato, F.N. Gygax, and A. Schenck,
Journal of Physics: Condensed Matter 15, 6997 (2003).
[52] Inhomogeneous magnetism in URu2Si2 studied by muon spin relaxation under high pressure
H. Amitsuka, K. Tenya, M. Yokoyama, A. Schenck, D. Andreica, F.N. Gygax, A. Amato, Y. Miyako, H. Ying Kai, and J.A. Mydosh,
Physica B 326, 418 (2003).
[53] Magnetic fluctuations and superconductivity in YbPd2Sn
A. Amato, B. Roessli, P. Fischer, N. Bernhoeft, A. Stunault, C. Baines, A. Donni, and H. Sugawara,
Physica B 326, 369 (2003).
[54] Magnetic properties of copper metaborate CuB2O4
G.A. Petrakovskii, A.I. Pankrats, M.A. Popov, A. Balaev, D.A. Velikanov, A.M. Vorotynov, K. Sablina, B. Roessli, J. Schefer, A. Amato, U. Staub, M. Boehm, and B. Ouladdiaf,
Low Temperature Physics 28, 606 (2002).
[55] The magnetic state and spin dynamics of single crystal CuB2O4
G.A. Petrakovskii, A.I. Pankrats, A. Balaev, A. Vorotinov, K. Sablina, M.A. Popov, B. Roessli, A. Amato, J. Schefer, and B. Ouladdiaf,
Physics of Metals and Metallography 93, S102 (2002).
[56] Muon localization along a six-fold ring-shaped site and muon quantum hopping in GdNi5
A.M. Mulders, P.C.M. Gubbens, C.T. Kaiser, A. Amato, F.N. Gygax, A. Schenck, P. Dalmas de Réotier, A. Yaouanc, K.H.J. Buschow, F. Kayzel, and A.A. Menovsky,
Journal of Alloys and Compounds 330-332, 454 (2002).
[57] Dynamical crossover in an Ising spin glass above Tg: A muon-spin-relaxation investigation of Fe0.05TiS2
A. Keren, F. Gulener, I. Campbell, G. Bazalitsky, and A. Amato,
Physical Review Letters 89, 107201 (2002).
[58] Common energy scale for magnetism and superconductivity in underdoped cuprates: A muon spin resonance investigation of (CaxLa1-x)(Ba1.75-xLa0.25+x)Cu3Oy
A. Kanigel, A. Keren, Y. Eckstein, A. Knizhnik, J.S. Lord, and A. Amato,
Physical Review Letters 88, 137003 (2002).
[59] µSR magnetic studies of CeNi1-xCux
G.M. Kalvius, E. Schreier, A. Kratzer, D.R. Noakes, R. Wappling, J.I. Espeso, J.C. Gomez Sal, A. Amato, and C. Baines,
Physica B 312-313, 184 (2002).
[60] µSR studies on the charge density waves in RE5Ir4Si10
F. Galli, G.J. Nieuwenhuys, D.E. MacLaughlin, R.H. Heffner, A. Amato, O.O. Bernal, and J.A. Mydosh,
Physica B 319, 282 (2002).
[61] Microscopic investigation of moving flux line structures in superconductors using neutron diffraction and µSR
E.M. Forgan, D. Charalambous, D. Fort, R. Cubitt, C. Simon, S.L. Lee, and A. Amato,
Journal de Physique IV 12, 155 (2002).
[62] Macroscopic and local magnetic moments in Si-doped CuGeO3 as determined by neutron and µSR studies
F. Semadeni, A. Amato, B. Roessli, P. Boni, C. Baines, T. Masuda, K. Uchinokura, and G. Shirane,
European Physical Journal B 21, no.3, 307 (2001).
[63] Magnetic phase transitions in the double spin-chains compound LiCu2O2
B. Roessli, U. Staub, A. Amato, D. Herlach, P. Pattison, K. Sablina, and G.A. Petrakovskii,
Physica B 296, 306 (2001).
[64] Spin-glass state in CuGa2O4
G.A. Petrakovskii, K.S. Aleksandrov, L.N. Bezmaternikh, S.S. Aplesnin, B. Roessli, F. Semadeni, A. Amato, C. Baines, J. Bartolome, and M. Evangelisti,
Physical Review B 63, 184425 (2001).
[65] Muon spin dynamics and sites in GdNi5
A.M. Mulders, P.C.M. Gubbens, C.T. Kaiser, A. Amato, F.N. Gygax, A. Schenck, P. Dalmas de Réotier, A. Yaouanc, K.H.J. Buschow, F. Kayzel, and A.A. Menovsky,
Hyperfine Interactions 133, 197 (2001).
[66] Staggered magnetization, critical behavior, and weak ferromagnetic properties of LaMnO3 by muon spin rotation
M.C. Guidi, G. Allodi, R. De Renzi, G. Guidi, M. Hennion, L. Pinsard, and A. Amato,
Physical Review B 64, 064414 (2001).
[67] The neutral fraction of muonium in silicon at high temperatures
S.F.J. Cox, M. Charlton, P. Donnelly, A. Amato, and A. Schenck,
Journal of Physics: Condensed Matter 13, 2155 (2001).
[68] µSR studies of the nonmagnetic-magnetic transition in YbCu5-xAlx
D. Andreica, A. Amato, F.N. Gygax, A. Schenck, G. Wiesinger, C. Reichl, and E. Bauer,
Journal of Magnetism and Magnetic Materials 226-230, 129 (2001).
[69] Muon Spin Rotation (µSR): Applications in Magnetism
A. Amato,
in The Encyclopedia of Materials: Science and Technology, edited by K. H. J. Buschow (Elsevier, Amsterdam, 2001), p. 5888.
[70] Evidence for a two component magnetic response in UPt3
A. Yaouanc, P. Dalmas de Réotier, F.N. Gygax, A. Schenck, A. Amato, C. Baines, P.C.M. Gubbens, C.T. Kaiser, A. De Visser, R.J. Keizer, A. Huxley, and A.A. Menovsky,
Physical Review Letters 84, 2702 (2000).
[71] Magnetic ordering in Li2CuO2 studied by µSR technique
U. Staub, B. Roessli, and A. Amato,
Physica B 289-290, 299 (2000).
[72] A novel set-up for fast muon-spin-rotation experiments
R. Scheuermann, H. Dilger, E. Roduner, J. Major, M. Schefzik, A. Amato, D. Herlach, A. Raselli, and I.D. Reid,
Physica B 289-290, 698 (2000).
[73] Anomalous temperature dependence of the µ+ Knight shift and the phase diagram of UPd3
A. Schenck, D. Andreica, F.N. Gygax, M. Pinkpank, K.A. McEwen, and A. Amato,
Physica B 289-290, 311 (2000).
[74] Low-energy muon study of CMR and spin-glass films
A. Schenck, F.N. Gygax, D. Andreica, M. Pinkpank, G.J. Nieuwenhuys, J. Aarts, S. Freisem, M. Hesselberth, J.A. Mydosh, E. Morenzoni, H. Gluckler, T. Prokscha, and A. Amato,
Physica B 289-290, 331 (2000).
[75] Study of the positive muon Knight shift in UNi2Al3: evidence for a tetravalent U4+-state and crystalline electric field splitting
A. Schenck, N.K. Sato, G. Solt, D. Andreica, F.N. Gygax, M. Pinkpank, and A. Amato,
European Physical Journal B 13, 245 (2000).
[76] Muon localization site in U(Pt,Pd)3
A. Schenck, R.J. Keizer, A. de Visser, A. Amato, D. Andreica, F.N. Gygax, M. Pinkpank, P. Estrela, M.J. Graf, A.A. Menovsky, and J.J.M. Franse,
Physica B 289-290, 455 (2000).
[77] Magnetic structure of U(Pd1-xFex)2Ge2 studied by mu µSR: comparison with neutron diffraction data
E.V. Raspopina, A.M. Balagurov, V.Y. Pomjakushin, V.V. Sikolenko, A.V. Gribanov, A. Amato, and A. Schenck,
Physica B 289-290, 282 (2000).
[78] Concomitance of magnetic ordering and superconductivity in low oxygen mobility La2CuO4+x single crystals
V.Y. Pomjakushin, A.M. Balagurov, A.A. Zahharov, F.N. Gygax, A. Schenck, A. Amato, and D. Herlach,
Physica C 341-348, 2153 (2000).
[79] Modulated magnetic structure of U(Pd1-xFex)2Ge2 studied by µSR
V.Y. Pomjakushin, A.M. Balagurov, E.V. Raspopina, V.V. Sikolenko, A.V. Gribanov, A. Schenck, A. Amato, U. Zimmermann, and I.S. Lyubutin,
Journal of Physics: Condensed Matter 12, 7969 (2000).
[80] Dynamic magnetic properties of GdBa2Cu3O6+x as function of the oxygen content
M. Pinkpank, A. Amato, D. Andreica, F.N. Gygax, H.R. Ott, and A. Schenck,
Physica B 289-290, 295 (2000).
[81] Time effects induced by the muon point charge in the antiferromagnetically ordered phase of HoBa2Cu3O7
M. Pinkpank, A. Amato, D. Andreica, F.N. Gygax, H.R. Ott, and A. Schenck,
Physica B 289-290, 316 (2000).
[82] Determination of the muon site in URh2Ge2
G.J. Nieuwenhuys, N.G. Patil, H. Noijons, D.G. Tomuta, D.E. MacLaughlin, R.H. Heffner, and A. Amato,
Physica B 289-290, 228 (2000).
[83] Positive muon diffusion and localization sites in GdNi5
A.M. Mulders, C.T. Kaiser, P.C.M. Gubbens, A. Amato, F.N. Gygax, M. Pinkpank, A. Schenck, P. Dalmas de Réotier, A. Yaouanc, K.H.J. Buschow, F. Kayzel, and A. Menovsky,
Physica B 289-290, 451 (2000).
[84] Muon spin rotation and non-Fermi liquid behavior in UCu4Pd
D.E. MacLaughlin, R.H. Heffner, J.E. Sonier, G.J. Nieuwenhuys, R. Chau, M.B. Maple, B. Andraka, G.M. Luke, Y. Fudamoto, Y.J. Uemura, A. Amato, and C. Baines,
Physica B 289-290, 15 (2000).
[85] Muon spin relaxation and nonmagnetic Kondo state in PrInAg2
D.E. MacLaughlin, R.H. Heffner, G.J. Nieuwenhuys, P.C. Canfield, A. Amato, C. Baines, A. Schenck, G.M. Luke, Y. Fudamoto, and Y.J. Uemura,
Physical Review B 61, 555 (2000).
[86] Light hydrogen isotope µ+ in Sc and alpha -ScHx solid solutions
F.N. Gygax, G. Solt, A. Amato, I.S. Anderson, M. Pinkpank, A. Schenck, and T.J. Udovic,
Physical Review B 61, 168 (2000).
[87] Study of the magnetic properties of Ce3Pd20Si6 compound
V.N. Duginov, K.I. Gritsaj, A. Amato, C. Baines, D. Herlach, V.Y. Pomjakushin, U. Zimmermann, A.N. Ponomarev, I.A. Krivosheev, A.A. Nezhivoy, A.V. Gribanov, V.N. Nikiforov, and Y.D. Seropegin,
Physica B 289-290, 43 (2000).
[88] Magnetic quantum critical point and superconductivity in UPt3 doped with Pd
A. de Visser, M.J. Graf, P. Estrela, A. Amato, C. Baines, D. Andreica, F.N. Gygax, and A. Schenck,
Physical Review Letters 85, 3005 (2000).
[89] Phase diagram of low doping manganites
R. De Renzi, G. Allodi, G. Amoretti, M.C. Guidi, S. Fanesi, G. Guidi, F. Licci, A. Caneiro, F. Prado, R. Sanchez, S. Oseroff, and A. Amato,
Physica B 289-290, 85 (2000).
[90] Magnetic order in pure LaMnO3 and in Ca-doped single crystals
R. De Renzi, G. Allodi, M.C. Guidi, G. Guidi, M. Hennion, L. Pinsard, and A. Amato,
Physica B 289-290, 52 (2000).
[91] Magnetism and superconductivity of UPt3 by muon spin techniques
P. Dalmas de Réotier, A. Yaouanc, P.C.M. Gubbens, C.T. Kaiser, A.M. Mulders, F.N. Gygax, A. Schenck, A. Amato, C. Baines, A. de Visser, R.J. Keizer, P. Bonville, P.J.C. King, A. Huxley, and A.A. Menovsky,
Physica B 289-290, 10 (2000).
[92] Chemical pressure effects in the Yb(NixCu1-x)2Si2 system
D. Andreica, A. Amato, F. Gygax, M. Pinkpank, and A. Schenck,
Physica B 289-290, 24 (2000).
[93] Muon tunneling along a ring-shaped orbit in UNi2Al3
A. Amato, D. Andreica, F.N. Gygax, M. Pinkpank, N.K. Sato, A. Schenck, and G. Solt,
Physica B 289-290, 447 (2000).
[94] µSR investigation of the quasi-elastic magnetic excitations in strongly correlated compounds
A. Yaouanc, P. Dalmas de Réotier, P.C.M. Gubbens, C.T. Kaiser, P. Bonville, J.A. Hodges, A. Amato, A. Schenck, P. Lejay, A.A. Menovsky, and M. Mihalik,
Physica B 259-261, 126 (1999).
[95] New µSR results on the magnetic structure of CeAl2
A. Schenck, D. Andreica, M. Pinkpank, F.N. Gygax, H.R. Ott, A. Amato, R.H. Heffner, D.E. MacLaughlin, and G.J. Nieuwenhuys,
Physica B 259-261, 14 (1999).
[96] The effect of oxygen reduction on the magnetic properties of REBa2Cu3O6+x
M. Pinkpank, A. Amato, D. Andreica, F.N. Gygax, H.R. Ott, and A. Schenck,
Physica C 317-318, 299 (1999).
[97] Weak ferromagnetism in CuB2O4 copper metaborate
G.A. Petrakovskii, D. Velikanov, A. Vorotinov, A. Balaev, K. Sablina, A. Amato, B. Roessli, J. Schefer, and U. Staub,
Journal of Magnetism and Magnetic Materials 205, 105 (1999).
[98] Magnetism in heavy-fermion U(Pt,Pd)3 studied by µSR
R.J. Keizer, A. de Visser, A.A. Menovsky, J.J.M. Franse, A. Amato, F.N. Gygax, M. Pinkpank, and A. Schenck,
Journal of Physics: Condensed Matter 11, 8591 (1999).
[99] Transport properties and µSR spectroscopy of Yb(NixCu1-x)2Si2
D. Andreica, K. Alami-Yadri, D. Jaccard, A. Amato, and A. Schenck,
Physica B 259-261, 144 (1999).
[100] µ+ hopping between magnetically labeled sites in PrIn3: "kinematic" simulation and analytic treatment
G. Alexandrowicz, T. Tashma, M. Socolovsky, A. Amato, A. Grayevsky, F.N. Gygax, M. Pinkpank, A. Schenck, and N. Kaplan,
Physical Review Letters 82, 1028 (1999).
[101] Muons on request (MORE): combining advantages of continuous and pulsed muon beams
R. Abela, A. Amato, C. Baines, X. Donath, R. Erne, D.C. George, D. Herlach, G. Irminger, I.D. Reid, D. Renker, G. Solt, D. Suhi, M. Werner, and U. Zimmermann,
Hyperfine Interactions 120-121, 575 (1999).
[102] High-temperature magnetic order in the singlet-ground-state compound PrCu2
A. Schenck, D. Andreica, F.N. Gygax, M. Pinkpank, Y. Onuki, P. Ahmet, M. Abliz, R. Settai, A. Amato, and N. Kaplan,
Physical Review B 58, 5205 (1998).
[103] Magnetic properties of U14Au51: an exemplary study by muon spin-rotation (µSR) spectroscopy
A. Schenck, M. Pinkpank, F.N. Gygax, K.U. Neumann, K.R.A. Ziebeck, and A. Amato,
Journal of Physics: Condensed Matter 10, 8059 (1998).
[104] Microscopic phase separation in La2CuO4+x induced by the superconducting transition
V.Y. Pomjakushin, A.A. Zakharov, A.M. Balagurov, F.N. Gygax, A. Schenck, A. Amato, D. Herlach, A.I. Beckrovny, V.N. Duginov, Y.V. Obukhov, A.N. Ponomarev, and S.N. Barilo,
Physical Review B 58, 12350 (1998).
[105] µSR study of magnetism in heavy-fermion U(Pt,Pd)3
A. de Visser, R.J. Keizer, R. van Harrevelt, A.A. Menovsky, J.J.M. Franse, A. Amato, F.N. Gygax, M. Pinkpank, and A. Schenck,
Journal of Magnetism and Magnetic Materials 177-181, 435 (1998).
[106] Onset of magnetic order in the concentrated region in CeCu5-xGax
G. Wiesinger, R. Hatzl, E. Bauer, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Physica B 230-232, 243 (1997).
[107] Electronic changes induced by µ+ in PrIn3: muon-spin-rotation observation and crystalline-electric-field model calculation
T. Tashma, A. Amato, A. Grayevsky, F.N. Gygax, M. Pinkpank, A. Schenck, and N. Kaplan,
Physical Review B 56, 9397 (1997).
[108] µSR studies of the low-temperature magnetism in a valence-fluctuation compound Sm3Se4
S. Takagi, T. Suzuki, A. Amato, F.N. Gygax, A. Schenck, and A. Ochiai,
Hyperfine Interactions 104, 151 (1997).
[109] Muon depolarization in bismuth at high applied fields: possible effects of electron orbital diamagnetism
G. Solt, A. Amato, F.N. Gygax, and A. Schenck,
Hyperfine Interactions 104, no.1-4, 369 (1997).
[110] Polarization of negative muons implanted in the fullerene C60: speculations about a null result
A. Schenck, F.N. Gygax, A. Amato, R. Feyerherm, M. Pinkpank, A. Lappas, and K. Prassides,
in Lectures in Physics, edited by K. Jungmann, J. Kowalski, I. Reinhard and F. Trager (Springer, Berlin, 1997), Vol. 299.
[111] Anomalous field dependence of muon Knight shift and line width in the singlet ground state compound PrCu2
A. Schenck, A. Amato, F.N. Gygax, M. Pinkpank, P. Ahmet, M. Ablitz, R. Settai, and Y. Onuki,
Hyperfine Interactions 104, 105 (1997).
[112] Pressure induced collapse of the 4f-electron induced µ+-Knight shift in Sm0.9La0.1S
A. Schenck, A. Amato, F.N. Gygax, M. Pinkpank, A. Jung, P. Wachter, J. Major, T. Stammler, and R. Scheuermann,
Hyperfine Interactions 104, 209 (1997).
[113] Muon Knight shift and µ+ site in the monopnictide CeAs
A. Schenck, A. Amato, F.N. Gygax, M. Pinkpank, and H.R. Ott,
Hyperfine Interactions 104, 215 (1997).
[114] Spin-freezing in superconducting La2CuO4.03 single crystal
V.Y. Pomjakushin, A. Amato, V.N. Duginov, F.N. Gygax, D. Herlach, A.N. Ponomarev, A. Schenck, and A.A. Zakharov,
Hyperfine Interactions 105, 83 (1997).
[115] Phase separation in La2CuO4+y single crystals studied by µSR and neutron diffraction
V.Y. Pomjakushin, A. Amato, A.M. Balagurov, A.I. Beskrovny, V.N. Duginov, F.N. Gygax, D. Herlach, A.N. Ponomarev, A. Schenck, V.G. Simkin, and A.A. Zakharov,
Physica C 282-287, 1353 (1997).
[116] Can one observe by µSR the transition from uncorrelated to correlated spin fluctuations? Example: Nd1.4Ce0.2Sr0.4CuO4-d
M. Pinkpank, A. Amato, F.N. Gygax, A. Schenck, W. Henggeler, and P. Fischer,
Hyperfine Interactions 105, 145 (1997).
[117] µSR studies of Kondo disorder in UCu5-xPdx and CeCu5.9Au0.1
D.E. MacLaughlin, O.O. Bernal, A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, R.H. Heffner, L.P. Le, G.J. Nieuwenhuys, B. Andraka, H.v. Loehneysen, O. Stockert, and H.R. Ott,
Physica B 230-232, 606 (1997).
[118] µSR studies of borocarbides
L.P. Le, R.H. Heffner, J.D. Thompson, G.J. Nieuwenhuys, D.E. Maclaughlin, P.C. Canfield, B.K. Cho, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Hyperfine Interactions 104, 49 (1997).
[119] Magnetism and superconductivity in La1.875Ba0.125-ySryCuO4+d and La1.6-yNd0.4SryCuO4
A. Lappas, L. Cristofolini, K. Prassides, K. Vavekis, A. Amato, F.N. Gygax, M. Pinkpank, and A. Schenck,
Hyperfine Interactions 105, 101 (1997).
[120] In-situ temperature calibration below 1 K using the mu+ Knight shift in CMN
R.H. Heffner, L.P. Le, G.J. Nieuwenhuys, D.E. Maclaughlin, A. Amato, and C. Baines,
Hyperfine Interactions 106, 271 (1997).
[121] Evidence for possible spin or orbital magnetism in the superconducting state of UBe12.91B0.09
R.H. Heffner, L.P. Le, G.J. Nieuwenhuys, D.E. MacLaughlin, A. Amato, F.N. Gygax, A. Schenck, J.S. Kim, G. Stewart, and H.R. Ott,
Physica B 230-232, 398 (1997).
[122] Electric field gradients probed by µ+SR in Sc and alpha -ScHx solid solutions
F.N. Gygax, A. Amato, M. Pinkpank, A. Schenck, I.S. Anderson, G. Solt, and T.J. Udovic,
Hyperfine Interactions 106, 91 (1997).
[123] Residual polarization of negative muons implanted in C60 and K3C60
F.N. Gygax, A. Amato, M. Pinkpank, A. Schenck, I.D. Reid, K. Prassides, K. Vavekis, and A. Lappas,
Hyperfine Interactions 106, 211 (1997).
[124] µ+ relaxation correlated with susceptibility in the van-Vleck paramagnet PrIn3
A. Grayevsky, T. Tashma, I. Felner, Z. Kalman, N. Kaplan, F. Gygax, A. Amato, M. Pinkpank, and A. Schenck,
Hyperfine Interactions 104, 67 (1997).
[125] µ+SR frequency shifts in the van-Vleck paramagnet PrIn3
A. Grayevsky, I. Felner, T. Tashma, N. Kaplan, F. Gygax, A. Amato, M. Pinkpank, and A. Schenck,
Hyperfine Interactions 104, 73 (1997).
[126] Competition between magnetism and superconductivity in CeCu2Si2
R. Feyerherm, A. Amato, C. Geibel, F.N. Gygax, P. Hellmann, R.H. Heffner, D.E. MacLaughlin, R. Muller-Reisener, G.J. Nieuwenhuys, A. Schenck, and F. Steglich,
Physical Review B 56, 699 (1997).
[127] µSR study of antiferromagnetic order in UPt3 alloyed with Pd
A. de Visser, R.J. Keizer, R. van Harrevelt, A.A. Menovsky, J.J.M. Franse, A. Amato, F.N. Gygax, M. Pinkpank, and A. Schenck,
Physica B 230-232, 53 (1997).
[128] A µ+SR study of the magnetic properties of ferritin
L. Cristofolini, K. Prassides, K. Vavekis, A. Amato, F.N. Gygax, A. Schenck, S. Gider, and D.D. Awschalom,
Hyperfine Interactions 104, 269 (1997).
[129] µ+-site in heavy-fermion compounds
A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Hyperfine Interactions 104, 115 (1997).
[130] µSR studies of low charge carrier density heavy-fermion systems
A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, M. Kasaya, T. Suzuki, S. Takagi, and A. Ochiai,
Hyperfine Interactions 104, 165 (1997).
[131] Heavy-fermion systems studied by µSR technique
A. Amato,
Reviews of Modern Physics 69, 1119 (1997).
[132] Spin-glass ordering in non phase separated La2CuO4.03 studied by µSR
V.Y. Pomjakushin, A.A. Zakharov, A. Amato, V.N. Duginov, F.N. Gygax, D. Herlach, A.N. Ponomarev, and A. Schenck,
Physica C 272, 250 (1996).
[133] Muon-spin-rotation studies of HoNi2B2C
L.P. Le, R.H. Heffner, J.D. Thompson, D.E. MacLaughlin, G.J. Nieuwenhuys, A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, P.C. Canfield, and B.K. Cho,
Physical Review B 53, R510 (1996).
[134] Kondo disorder and non-Fermi-liquid behavior in UCu5-xPdx and CeCu5.9Au0.1
O.O. Bernal, D.E. MacLaughlin, A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, R.H. Heffner, L.P. Le, G.J. Nieuwenhuys, B. Andraka, H. von Lohneysen, O. Stockert, and H.R. Ott,
Physical Review B 54, 13000 (1996).
[135] Search for weak magnetic order in CeCu5-xAlx
G. Wiesinger, E. Bauer, T. Haeufler, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Physica B 206-207, 261 (1995).
[136] Muon spin rotation spectroscopy on a UNiGa single crystal
K. Prokes, P. Svoboda, V. Sechovsky, E. Bruck, A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, H. Maletta, and F.R. de Boer,
Journal of Magnetism and Magnetic Materials 140-144, 1381 (1995).
[137] µ+SR in antiferromagnetic UNi4B
G.J. Nieuwenhuys, S.A.M. Mentink, A.A. Menovsky, A. Amato, R. Feyerherm, F.N. Gygax, R.H. Heffner, L.P. Le, D.E. MacLaughlin, and A. Schenck,
Physica B 206-207, 470 (1995).
[138] µ+SR studies of magnetic properties of boron carbide superconductors
L.P. Le, R.H. Heffner, G.J. Nieuwenhuys, P.C. Canfield, B.K. Cho, A. Amato, R. Feyerherm, F.N. Gygax, D.E. MacLaughlin, and A. Schenck,
Physica B 206-207, 552 (1995).
[139] Spontaneous magnetic ordering in the fullerene charge-transfer salt (TDAE)C60
A. Lappas, K. Prassides, K. Vavekis, D. Arcon, R. Blinc, P. Cevc, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Science 267, 1799 (1995).
[140] Spin-freezing in the layered perovskites La2CoxCu1-xO4+d
A. Lappas, K. Prassides, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Journal of Magnetism and Magnetic Materials 140-144, 1291 (1995).
[141] Dynamics of µ+ in Sc and ScHx
F.N. Gygax, A. Amato, R. Feyerherm, A. Schenck, I.S. Anderson, T.J. Udovic, and G. Solt,
Journal of Alloys and Compounds 231, 248 (1995).
[142] Problems of the magnetic structure of CeB6
R. Feyerherm, A. Amato, F.N. Gygax, A. Schenck, Y. Onuki, and N. Sato,
Journal of Magnetism and Magnetic Materials 140-144, 1175 (1995).
[143] On the competition between superconductivity and magnetism in CeCu2Si2
R. Feyerherm, A. Amato, C. Geibel, F.N. Gygax, P. Hellmann, R.H. Heffner, D.E. MacLaughlin, R. Mueller-Reisener, G.J. Nieuwenhuys, A. Schenck, and F. Steglich,
Physica B 206-207, 596 (1995).
[144] Crystal electric field next to a hydrogen-like interstitial-µ+ in PrNi5
R. Feyerherm, A. Amato, A. Grayevsky, F.N. Gygax, N. Kaplan, and A. Schenck,
Zeitschrift für Physik B 99, 3 (1995).
[145] Measurement of the perturbation of the crystal electric field at Pr3+ in PrNi5 next to a single hydrogen like interstitial
R. Feyerherm, A. Amato, A. Grayevsky, F.N. Gygax, N. Kaplan, and A. Schenck,
Journal of Alloys and Compounds 231, 164 (1995).
[146] µ+SR study of zero-field magnetic ordering in CsC60
L. Cristofolini, A. Lappas, K. Vavekis, K. Prassides, R. DeRenzi, M. Ricco, A. Schenck, A. Amato, F.N. Gygax, M. Kosaka, and K. Tanigaki,
Journal of Physics: Condensed Matter 7, L567 (1995).
[147] Muon-spin-relaxation studies on the heavy-fermion system with non-Fermi-liquid behavior CeCu5.9Au0.1
A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, H.v. Lohneysen, and H.G. Schlager,
Physical Review B 52, 54 (1995).
[148] Correlated electron systems studied by µSR technique
A. Amato,
Physica B 206-207, 49 (1995).
[149] µ+SR study of the magnetic order in CeCu5
G. Wiesinger, E. Bauer, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Physica B 199-200, 52 (1994).
[150] Zero residual polarization of negative muons implanted in C60
A. Schenck, F.N. Gygax, A. Amato, R. Feyerherm, T.J.S. Dennis, R.M. Macrae, and K. Prassides,
Hyperfine Interactions 86, 831 (1994).
[151] Crystal symmetry and electronic properties of heavy-fermion MPd2Al3 (M=Ce,U)
S.A.M. Mentink, G.J. Nieuwenhuys, A.A. Menovsky, J.A. Mydosh, A. Drost, E. Frikkee, Y. Bando, T. Takabatake, P. Boni, P. Fischer, A. Furrer, A. Amato, and A. Schenck,
Physica B 199-200, 143 (1994).
[152] Magnetism and superconductivity in La1.875(Ba,Sr)0.125CuO4
A. Lappas, J. Osborne, K. Prassides, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Physica B 194-196, 353 (1994).
[153] Magnetic ordering in the T* phase La1.2Tb0.8CuO4
A. Lappas, K. Prassides, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Hyperfine Interactions 86, 555 (1994).
[154] Spin dynamics in CuGeO3 studied by muon spin rotation
A. Lappas, K. Prassides, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Zeitschrift für Physik B 96, 223 (1994).
[155] Neutron scattering and µ+SR spectroscopy of the magnetic correlations in superconducting La1.875(Ba,Sr)0.125CuO4
A. Lappas, J. Osborne, K. Prassides, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Physica C 235-240, 1725 (1994).
[156] Magnetic ordering in YbBiPt
R.H. Heffner, A. Amato, P.C. Canfield, R. Feyerherm, Z. Fisk, F.N. Gygax, D.E. MacLaughlin, A. Schenck, J.D. Thompson, and H.R. Ott,
Physica B 199-200, 113 (1994).
[157] µ+ localization and tunnelling in Sc
F.N. Gygax, A. Amato, A. Schenck, I.S. Anderson, J.J. Rush, and G. Solt,
Hyperfine Interactions 85, 73 (1994).
[158] Muon spin rotation (µ+SR) studies of magnetic ordering of CeB6
R. Feyerherm, A. Amato, F.N. Gygax, A. Schenck, Y. Onuki, and N. Sato,
Physica B 194-196, 357 (1994).
[159] µ+SR studies of magnetism and superconductivity of the heavy fermion superconductor UPd2Al3
R. Feyerherm, A. Amato, C. Geibel, F.N. Gygax, T. Komatsubara, N. Sato, A. Schenck, and F. Steglich,
Physica B 199-200, 103 (1994).
[160] µ+SR Knight shift in single crystal PrNi5-evidence for muon-induced distortion of crystal-field levels
R. Feyerherm, A. Amato, F.N. Gygax, A. Schenck, U. Zimmermann, A. Grayevsky, and N. Kaplan,
Hyperfine Interactions 85, 329 (1994).
[161] Coexistence of local moment magnetism and heavy-fermion superconductivity in UPd2Al3
R. Feyerherm, A. Amato, F.N. Gygax, A. Schenck, C. Geibel, F. Steglich, N. Sato, and T. Komatsubara,
Physical Review Letters 73, 1849 (1994).
[162] Dynamics in canonical spin glasses observed by muon spin depolarization
I.A. Campbell, A. Amato, F.N. Gygax, D. Herlach, A. Schenck, R. Cywinski, and S.H. Kilcoyne,
Physical Review Letters 72, 1291 (1994).
[163] Indication for a delocalized precursor µ+ state in CeAl3
A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, and D. Jaccard,
Hyperfine Interactions 85, 369 (1994).
[164] Ultrasmall-moment static magnetism in CeRu2Si2
A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, J. Flouquet, and P. Lejay,
Physical Review B 50, 619 (1994).
[165] Magnetism in heavy-fermion systems probed by µ+SR spectroscopy
A. Amato,
Physica B 199-200, 91 (1994).
[166] Magnetic-flux distribution and the magnetic penetration depth in superconducting polycrystalline Bi2Sr2Ca1-xYxCu2O8+d and Bi2-xPbxSr2CaCu2O8+d
M. Weber, A. Amato, F.N. Gygax, A. Schenck, H. Maletta, V.N. Duginov, V.G. Grebinnik, A.B. Lazarev, V.G. Olshevsky, V.Y. Pomjakushin, S.N. Shilov, V.A. Zhukov, B.F. Kirillov, A.V. Pirogov, A.N. Ponomarev, V.G. Storchak, S. Kapusta, and J. Bock,
Physical Review B 48, 13022 (1993).
[167] NMR and µSR studies of valence fluctuation and magnetism in Sm3Se4
S. Takagi, H. Suzuki, A. Ochiai, T. Suzuki, A. Amato, R. Feyerherm, F.N. Gygax, and A. Schenck,
Physica B 186-188, 422 (1993).
[168] µ+SR studies of the magnetic and superconducting states of URu2Si2
E.A. Knetsch, A.A. Menovsky, G.J. Nieuwenhuys, J.A. Mydosh, A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, R.H. Heffner, and D.E. MacLaughlin,
Physica B 186-188, 300 (1993).
[169] Study of µ+ localization and diffusion in Sc and ScH0.05
F.N. Gygax, A. Amato, I.S. Anderson, J.J. Rush, and A. Schenck,
Zeitschrift fur Physikalische Chemie 181, 119 (1993).
[170] µ+SR study in CeCu6 single crystal
A. Amato, R. Feyerherm, F.N. Gygax, D. Jaccard, A. Schenck, J. Sierro, E. Walker, and U. Zimmermann,
Physica B 186-188, 273 (1993).
[171] Zero-field muon spin relaxation studies of low-temperature magnetism in YbxY1-xBiPt (x=1.0 and 0.5)
A. Amato, P.C. Canfield, R. Feyerherm, Z. Fisk, F.N. Gygax, R.H. Heffner, E.A. Knetsch, D.E. MacLaughlin, H.R. Ott, A. Schenck, J.D. Thompson, and U. Zimmermann,
Physica B 186-188, 615 (1993).
[172] Evidence for static ultrasmall-moment magnetism in CeRu2Si2
A. Amato, C. Baines, R. Feyerherm, J. Flouquet, F.N. Gygax, P. Lejay, A. Schenck, and U. Zimmermann,
Physica B 186-188, 276 (1993).
[173] Discovery of novel magnetic features in the heavy-electron compound U2Zn17
A. Schenck, A. Amato, P. Birrer, F.N. Gygax, B. Hitti, E. Lippelt, S. Barth, H.R. Ott, and Z. Fisk,
Journal of Magnetism and Magnetic Materials 108, 97 (1992).
[174] Charge transfer and carrier density in Bi-2212 high-Tc superconductors
H. Maletta, M. Weber, A. Amato, J. Bock, V.N. Duginov, V.G. Grebinnik, F.N. Gygax, S. Kapusta, B.F. Kirillov, V.G. Olshevsky, A.V. Pirogov, Y.Y. Pomjakushin, A.N. Ponomarev, E. Preisler, A. Schenck, V.G. Storchak, and V.A. Zhukov,
Journal of Magnetism and Magnetic Materials 104-107, 495 (1992).
[175] µ+SR studies of UM2Al3, M=Ni,Pd
A. Amato, C. Geibel, F.N. Gygax, R.H. Heffner, E. Knetsch, D.E. MacLaughlin, C. Schank, A. Schenck, F. Steglich, and M. Weber,
Zeitschrift fur Physik B 86, 159 (1992).
[176] Magnetic and superconducting properties of the heavy-fermion superconductor UPd2Al3
A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, M. Weber, R. Caspary, P. Hellmann, C. Schank, C. Geibel, F. Steglich, D.E. MacLaughlin, E.A. Knetsch, and R.H. Heffner,
Europhysics Letters 19, 127 (1992).
[177] Magnetic excitations in single crystal PrNi5
A. Amato, W. Buhrer, A. Grayevsky, F.N. Gygax, A. Furrer, N. Kaplan, and A. Schenck,
Solid State Communications 82, 767 (1992).
[178] Low-temperature magnetism in YbBiPt
A. Amato, P.C. Canfield, R. Feyerherm, Z. Fisk, F.N. Gygax, R.H. Heffner, D.E. MacLaughlin, H.R. Ott, A. Schenck, and J.D. Thompson,
Physical Review B 46, no.5, 3151 (1992).
[179] London penetration depth in Bi-based high-Tc compounds
M. Weber, A. Amato, P. Birrer, V.N. Duginov, V.G. Grebinnik, F.N. Gygax, S. Kapusta, B.F. Kirillov, E. Lippelt, H. Maletta, V.G. Olshevsky, A.V. Pirogov, V.Y. Pomjakushin, A.N. Ponomarev, A. Schenck, V.G. Storchak, and V.A. Zhukov,
Superconductor Science & Technology 4, S403 (1991).
[180] The µSR-study of the London penetration depth in the high-Tc compounds Bi2Sr2Ca1-xYxCu2O8+d
M. Weber, A. Amato, V.N. Duginov, V.G. Grebinnik, I.I. Gurevich, F.N. Gygax, S. Kapusta, B.F. Kirillov, A.B. Lazarev, H. Maletta, B.A. Nikolsky, V.G. Olshevsky, A.V. Pirogov, V.Y. Pomjakushin, A.N. Ponomarev, A. Schenck, S.N. Shilov, V.G. Storchak, V.A. Suetin, and V.A. Zhukov,
Physica C 185-189, 1093 (1991).
[181] Electronic carrier density in doped Bi-based high-Tc superconductors
M. Weber, A. Amato, J. Bock, V.N. Duginov, I.A. Gaganov, V.G. Grebinnik, F.N. Gygax, S. Kapusta, B.F. Kirillov, A.B. Lazarev, H. Maletta, V.G. Olshevsky, A.V. Pirogov, V.Y. Pomjakushin, A.N. Ponomarev, E. Preisler, A. Schenck, S.N. Shilov, V.G. Storchak, and V.A. Zhukov,
Physica C 185-189, 749 (1991).
[182] Magnetic-ordering, hyperfine, and linear contributions to the low-temperature specific heat of (Y1-xPrx)Ba2Cu3O7-d
N.E. Phillips, R.A. Fisher, R. Caspary, A. Amato, H.B. Radousky, J.L. Peng, L. Zhang, and R.N. Shelton,
Physical Review B 43, 11488 (1991).
[183] Magnetic ordering, hyperfine and `linear' contributions to the low-temperature specific heat of (Y1-xPrx)Ba2Cu3O7
N.E. Phillips, R.A. Fisher, D.A. Wright, A. Amato, R. Caspary, H.B. Radousky, J.L. Peng, L. Zhang, and R.N. Shelton,
Physica C 185-189, 1069 (1991).
[184] Magnetic field dependence of the specific heat of heavy-fermion YbCu4.5
A. Amato, R.A. Fisher, N.E. Phillips, D. Jaccard, and E. Walker,
Physica B 165-166, 389 (1990).
[185] Pressure dependence of the specific heat of heavy-fermion YbCu4.5
A. Amato, R.A. Fisher, N.E. Phillips, D. Jaccard, and E. Walker,
Physica B 165-166, 425 (1990).
[186] Specific heat of La2-xSrxCuO4: volume fraction of superconductivity; possible structural transition at 45 K
A. Amato, R.A. Fisher, N.E. Phillips, and J.B. Torrance,
Physica B 165-166, 1337 (1990).
[187] Specific heat of (Y1-xPrx)Ba2Cu3O7: magnetic ordering; magnetic hyperfine fields
A. Amato, R. Caspary, R.A. Fisher, N.E. Phillips, H.B. Radousky, J.L. Peng, L. Zhang, and R.N. Shelton,
Physica B 165-166, 1347 (1990).
[188] Transport properties under magnetic fields of the heavy fermion system CeRu2Si2 and related compounds (Ce,La)Ru2Si2
A. Amato, D. Jaccard, J. Sierro, P. Haen, P. Lejay, and J. Flouquet,
Journal of Low Temperature Physics 77, 195 (1989).
[189] Inelastic neutron scattering study of cerium heavy fermion compounds
J. Rossat-Mignod, L.P. Regnault, J.L. Jacoud, C. Vettier, P. Lejay, J. Flouquet, E. Walker, D. Jaccard, and A. Amato,
Journal of Magnetism and Magnetic Materials 76-77, 376 (1988).
[190] Temperature and magnetic field dependence of magnetic correlations in the heavy fermion compound CeCu6
L.P. Regnault, W.A.C. Erkelens, J. Rossat-Mignod, J.L. Jacoud, J. Flouquet, J.M. Mignot, E. Walker, D. Jaccard, A. Amato, and C. Vettier,
Journal de Physique Colloque 49, 773 (1988).
[191] Residual resistivity in cerium heavy fermion compounds
J. Flouquet, P. Haen, F. Lapierre, C. Fierz, A. Amato, and D. Jaccard,
Journal of Magnetism and Magnetic Materials 76-77, 285 (1988).
[192] Thermopower and magneto-thermopower of CeRu2Si2 single crystals
A. Amato, D. Jaccard, J. Sierro, F. Lapierre, P. Haen, P. Lejay, and J. Flouquet,
Journal of Magnetism and Magnetic Materials 76-77, 263 (1988).
[193] A neutron scattering study of magnetic excitations in the heavy fermion compound CeCu6
L.P. Regnault, W.A.C. Erkelens, J. Rossat-Mignod, J. Flouquet, E. Walker, D. Jaccard, A. Amato, and B. Hennion,
Journal of Magnetism and Magnetic Materials 63-64, 289 (1987).
[194] Pressure dependence of the specific heat of heavy-fermion compounds
N.E. Phillips, R.A. Fisher, S.E. Lacy, C. Marcenat, J.A. Olsen, J. Flouquet, A. Amato, D. Jaccard, Z. Fisk, A.L. Giorgi, J.L. Smith, and G.R. Stewart,
Theoretical and Experimental Aspects of Valence Fluctuations. Proceedings of the Fifth International Conference on Valence Fluctuations, 141 (1987).
[195] Specific heat of heavy-fermion CeCu6: effect of pressure and magnetic field
R.A. Fisher, S.E. Lacy, C. Marcenat, J.A. Olsen, N.E. Phillips, J. Flouquet, A. Amato, and D. Jaccard,
Japanese Journal of Applied Physics Suppl. 26, 1257 (1987).
[196] Transport properties of CeCu6 at very low temperature
A. Amato, D. Jaccard, E. Walker, J. Sierro, and J. Flouquet,
Journal of Magnetism and Magnetic Materials 63-64, 300 (1987).
[197] Investigation of the magnetic correlations in CeCu6
A. Amato, A. Benoit, W.D. Brewer, J. Flouquet, D. Jaccard, J. Schweizer, and E. Walker,
Journal of Magnetism and Magnetic Materials 63-64, 293 (1987).
[198] Thermodynamic and transport properties of CeCu6
A. Amato, D. Jaccard, J. Flouquet, F. Lapierre, J.L. Tholence, R.A. Fisher, S.E. Lacy, J.A. Olsen, and N.E. Phillips,
Journal of Low Temperature Physics 68, 371 (1987).
[199] Fermi liquid aspects in valence fluctuating systems
J. Flouquet, P. Haen, C. Marcenat, P. Lejay, A. Amato, D. Jaccard, and E. Walker,
Journal of Magnetism and Magnetic Materials 52, 85 (1985).
[200] Transport properties of CeCu6 single crystals
A. Amato, D. Jaccard, E. Walker, and J. Flouquet,
Solid State Communications 55, 1131 (1985).
[201] Thermopower of CeM2Si2 (M=Au, Pd, Rh, Ru) compounds
A. Amato and J. Sierro,
Journal of Magnetism and Magnetic Materials 47-48, 526 (1985).
[202] Magneto-thermopower of TmS and TmSe
A. Amato and J. Sierro,
Journal of Magnetism and Magnetic Materials 47-48, 475 (1985).
E-mail contact:
alex.amato@psi.ch / February 2007
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