YBIN1-XAGXCU4 - CROSSOVER FROM FIRST-ORDER VALENCE TRANSITION TO HEAVY-FERMION BEHAVIOR

Authors
SARRAO JL BENTON CL FISK Z LAWRENCE JM MANDRUS D THOMPSON JD
Citation
Jl. Sarrao et al., YBIN1-XAGXCU4 - CROSSOVER FROM FIRST-ORDER VALENCE TRANSITION TO HEAVY-FERMION BEHAVIOR, Physica. B, Condensed matter, 224(1-4), 1996, pp. 366-369
Citations number
13
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
224
Issue
1-4
Year of publication
1996
Pages
366 - 369
Database
ISI
SICI code
0921-4526(1996)224:1-4<366:Y-CFFV>2.0.ZU;2-Q
Abstract
The results of an on-going study of YbIn1-xAgxCu4 are presented. YbInC u4 undergoes a first-order valence transition at 40 K, while YbAgCu4 i s an isostructural heavy Fermion compound. We have succeeded in growin g single crystals of these compounds, as well as intermediate alloys, using flux-growth techniques. A smooth evolution from YbInCu4 to YbAgC u4 is observed. Results on the influence of sample quality, as well as the effect of other dopants, on the valence transition in YbInCu4 are also discussed.