[Zurück]

E. Bauer, G. Hilscher, H. Michor, C. Paul, Y. Aoki, H. Sato, D.T. Adroja, J.-G. Park, P. Bonville, C. Godart, J.G. Sereni, M. Giovannini, A. Saccone:
"The magnetic instability of Yb₂Pd₂(In,Sn) in a non-Fermi liquid environment";
Journal of Physics: Condensed Matter, 17 (2005), S. S999 - S1009.

The magnetic instability of Yb2Pd2(In,Sn) in a non-Fermi liquid environment
E Bauer1,10, G Hilscher1, H Michor1, Ch Paul1, Y Aoki2, H Sato2, D T Adroja3, J-G Park4, P Bonville5, C Godart6,7, J Sereni8, M Giovannini9 and A Saccone9
1 Institute of Solid State Physics, Vienna University of Technology, A-1040 Wien, Austria
2 Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
3 ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, UK
4 Department of Physics and Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea
5 CEA, CE Saclay, DSM/DRECAM/SPEC 91191, GIF-SUR-YVETTE, France
6 CNRS-UPR209, ISCSA, 2-8 rue Henri Dunant, F94320 Thiais, France
7 LURE, CNRS, Universite Paris Sud, 91405 Orsay, France
8 Laboratorio Bajas Temperaturas, Centro Atómico Bariloche (CNEA), 8400 SC de Bariloche, Argentina
9 Department of Chemistry, University of Genova, I-16146 Genova, Italy

10 Author to whom any correspondence should be addressed
E-mail: bauer@ifp.tuwien.ac.at

Received 5 January 2005
Published 4 March 2005
Print publication: Issue 11 (23 March 2005)

Abstract. Various concentrations of the solid solution Yb2Pd2In1-xSnx ranging from x = 0 to 1 with the tetragonal Mo2FeB2-type structure were prepared and their physical properties were studied by means of bulk and spectroscopic measurements as a function of temperature, pressure and magnetic fields. Results deduced from these studies indicate a slight variation of the valency of the Yb ions, from \nu \approx 2.9 for both border compounds to ν = 3 at x = 0.6. This variation gives rise to the appearance of long range magnetic order in a narrow concentration region around x = 0.6, while both border compounds remain non-magnetic. The outstanding concentration dependence for the ordered regime may be indicative of two quantum critical points, a novel feature not yet observed in Yb compounds.

doi:10.1088/0953-8984/17/11/032

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05937852

http://www.iop.org/EJ/abstract/0953-8984/17/11/032/