[Zurück]

E. Bauer, St Berger, A. Galatanu, C. Paul, M. Della Mea, H. Michor, G. Hilscher, A. Grytsiv, P. Rogl, D. Kaczorowski, L. Keller, T. Hermannsdörfer, P. Fischer:
"Magnetic behaviour of PrFe₄Sb₁₂ and NdFe₄Sb₁₂ skutterudites";
Physica B: Condensed Matter, 312-313 (2002), S. 840 - 842.

Magnetic behaviour of PrFe4Sb12 and NdFe4Sb12 skutterudites

E. Bauer [Corresponding Author Contact Information] , [E-mail The Corresponding Author] , a, St. Bergera, A. Galatanua, Ch. Paula, M. Della Meaa, H. Michora, G. Hilschera, A. Grytsivb, P. Roglb, D. Kaczorowskic, L. Kellerd, T. Hermannsdörferd and P. Fischerd

a Institut für Experimentalphysik, Technische Universität Wien, A-1040 Wien, Austria
b Institut für Physikalische Chemie, Universität Wien, A-1090 Wien, Austria
c W. Trzebiatowski Inst., Polish Acad. of Sciences, PL-50-950 Wroclaw, Poland
d LNS, ETH Zürich & Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland

Available online 20 November 2001.

Abstract

Skutterudites Pr0.73Fe4Sb12 and Nd0.72Fe4Sb12 order magnetically below 5 and 16.5 K, respectively. Pr0.73Fe4Sb12 exhibits an unusual high electronic contribution to the specific heat Cp/T of about 1000 mJ/molK2; moreover, magnetic fields of the order of 3 T are able to suppress long range magnetic order and at some critical field Cp/T behaves proportional to -ln T. Additionally, the low temperature resistivity changes from a T2 behaviour at [small mu, Greek] 0H=0 T to an almost linear dependence for [small mu, Greek] 0H [approximate] 3?4 T.

http://dx.doi.org/10.1016/S0921-4526(01)01210-8