Published August 1989
| Version v1
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Is YbAs a heavy Fermion system?
- 1. Argonne National Lab., IL (USA)
- 2. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
- 3. Eidgenoessische Technische Hochschule, Zurich (Switzerland). Lab. fuer Festkoerperphysik
Description
Using parameters extracted from a tight binding fit to an ab initio band structure, the specific heat anomaly observed in YbAs around 5 K is computed within the infinite U limit of the degenerate Anderson impurity model. Applying the renormalization procedure derived in variational treatments of the periodic Anderson model, a quasiparticle Fermi surface with strong nesting features and small mass enhancements is obtained. The results suggest that YbAs is not a ''classical'' heavy Fermion system. 28 refs., 3 figs., 1 tab
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS, PC A03/MF A01 as DE90001446; OSTI; INIS; US Govt. Printing Office Dep.Files
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Additional details
Publishing Information
- Imprint Pagination
- 13 p.
- Report number
- CONF-890953--7
Conference
- Title
- International conference on the physics of highly correlated electron systems.
- Dates
- 11-15 Sep 1989.
- Place
- Santa Fe, NM (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21011747
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ARSENIC COMPOUNDS; BAND THEORY; FERMIONS; SPECIFIC HEAT; YTTERBIUM COMPOUNDS
- Descriptors DEC
- PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; THERMODYNAMIC PROPERTIES
Optional Information
- Contract/Grant/Project number
- Contract W-31109-ENG-38