YbIn1-xAgxCu4: Crossover from first-order valence transition to heavy Fermion behavior
- Author(s): Sarrao, JL
- Benton, CL
- Fisk, Z
- Lawrence, JM
- Mandrus, D
- Thompson, JD
- et al.
Published Web Locationhttps://doi.org/10.1016/0921-4526(96)00124-X
The results of an on-going study of YbIn1-xAgxCu4are presented. YbInCu4undergoes a first-order valence transition at 40 K, while YbAgCu4is an isostructural heavy Fermion compound. We have succeeded in growing single crystals of these compounds, as well as intermediate alloys, using flux-growth techniques. A smooth evolution from YbInCu4to YbAgCu4is observed. Results on the influence of sample quality, as well as the effect of other dopants, on the valence transition in YbInCu4are also discussed.
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