Heat conductivity of the heavy-fermion compound YbAgCu4

Authors
Golubkov, AV Parfen'eva, LS Smirnov, IA Misiorek, H Mucha, J Jezowski, A
Citation
Av. Golubkov et al., Heat conductivity of the heavy-fermion compound YbAgCu4, PHYS SOL ST, 43(2), 2001, pp. 218-223
Citations number
44
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
43
Issue
2
Year of publication
2001
Pages
218 - 223
Database
ISI
SICI code
1063-7834(2001)43:2<218:HCOTHC>2.0.ZU;2-E
Abstract
The heat conductivity and electrical resistivity of a polycrystalline YbAgC u4 sample were measured in the 4.2-300-K temperature range. It is shown tha t at low temperatures (in the region corresponding to the coherent Kondo la ttice) the Lorenz number behaves in accordance with a theoretical model dev eloped for heavy-fermion materials. (C) 2001 MAIK "Nauka/Interperiodica".