Two energy scales and slow crossover in YbAl3
Conference
·
OSTI ID:797842
We present results for YbAl{sub 3} which show that the susceptibility {chi}(T), 4f occupation number n{sub f}(T) and the entropy S(T) exhibit a slow crossover between the Fermi liquid and local moment regimes. In addition both {chi}(T) and the linear specific heat coefficient {gamma} = C/T exhibit low temperature peaks that imply that in addition to the Kondo scale (T{sub K} {approx} 500K) there is a second low temperature scale (T{sub coh} {approx} 50K) for the onset of coherence. We discuss these results in the context of Nozieres' exhaustion in the Anderson lattice.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director, Office of Science. Office of Basic Energy Studies. Chemical Sciences, Geosciences, and Biosciences Division (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 797842
- Report Number(s):
- LBNL-49404; R&D Project: 403005; B& R KC0302030; TRN: US0202041
- Resource Relation:
- Conference: SCES, Ann Arbor, MI (US), 08/06/2001--08/10/2001; Other Information: PBD: 15 Jan 2002
- Country of Publication:
- United States
- Language:
- English
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