MU-SR STUDIES OF LOW CHARGE-CARRIER DENSITY HEAVY-FERMION SYSTEMS

Authors
AMATO A FEYERHERM R GYGAX FN SCHENCK A KASAYA M SUZUKI T TAKAGI S OCHIAI A
Citation
A. Amato et al., MU-SR STUDIES OF LOW CHARGE-CARRIER DENSITY HEAVY-FERMION SYSTEMS, Hyperfine interactions, 104(1-4), 1997, pp. 165-170
Citations number
13
Categorie Soggetti
Physics, Atomic, Molecular & Chemical","Physics, Nuclear","Physics, Condensed Matter
Journal title
Hyperfine interactions → ACNP
ISSN journal
03043843
Volume
104
Issue
1-4
Year of publication
1997
Pages
165 - 170
Database
ISI
SICI code
0304-3843(1997)104:1-4<165:MSOLCD>2.0.ZU;2-W
Abstract
We report on mu SR studies in low charge carrier density heavy-fermion systems with cubic symmetry. Whereas for Ce3Au3Sb4 and for Sm3Te4 the mu SR data point to the presence of some kind of spin-glass-like magn etic states at low temperature, for Yb4As3 preliminary mu SR studies j ust show a slight increase of the depolarization rate which indicates a slight slowing down of the Yb-moment fluctuations. Consequently for this latter system, the large linear term of the specific heat seems i ndeed to be connected to electronic excitations.