Non-Fermi-liquid scaling in Ce(Ru0.5Rh)(2)Si-2

Citation
Y. Tabata et al., Non-Fermi-liquid scaling in Ce(Ru0.5Rh)(2)Si-2, PHYS REV L, 86(3), 2001, pp. 524-527
Citations number
30
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
3
Year of publication
2001
Pages
524 - 527
Database
ISI
SICI code
0031-9007(20010115)86:3<524:NSIC>2.0.ZU;2-E
Abstract
We study the temperature and field dependence of the magnetic and transport properties of the non-Fermi-liquid (NFL) compound Ce(RU0.5Rh0.5)(2)Si-2 Fo r fields H less than or similar to 0.1 T the results suggest that the obser ved NFL behavior is disorder driven. For higher fields, however, magnetic a nd transport properties are dominated by the coupling of the conduction ele ctrons to critical spin fluctuations. The temperature dependence of the sus ceptibility as well as the scaling properties of the magnetoresistance are in very good agreement with the predictions of recent dynamical mean-field theories of Kondo alloys close to a spin-glass quantum critical point.