Abstract
Measurements of the temperature T dependence of the electrical resistivity ρ, specific heat C and magnetic susceptibility χ have been made on the compound CeRhSn from about 10 K to temperatures as low as 0.1 K. Over certain temperature intervals, these properties are observed to have non-Fermi-liquid (NFL) temperature T dependences: with and . While the NFL behaviour can be described by the Griffiths–McCoy model, it may also be related to a weak magnetic transition at 6.2 K that depends on atomic disorder. The resistively determined upper critical field versus temperature curve of the isostructural reference compound without f electrons, LaRhSn, is also reported.
Acknowledgement
One of us (A.Ś.) is grateful for the hospitality during his stay at University of California, San Diego (UCSD), and would like to express his appreciation to the Kosciuszko Foundation for support during his visit. He would like to thank the Komitet Badeń Naukowych for financial support from project 2 P03B 09825. The research at UCSD was supported by the US Department of Energy under grant DE FG03-86ER-45230 and the New Energy and Industrial Technology Development Organization's International Joint Research Grant program between UCSD, Hiroshima University, Technical University of Vienna and the University of Vienna.