KELLER, J and BAUER, A and FREYTAG, R (1991) INFLUENCE OF THE COULOMB INTERACTION BETWEEN CONDUCTION ELECTRONS AND F-ELECTRONS ON THE PROPERTIES OF HEAVY-FERMION SYSTEMS. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 83 (3). pp. 373-380. ISSN 0722-3277,
Full text not available from this repository.Abstract
In the usual description of heavy fermion systems by the Anderson Hamiltonian only the Coulomb interaction between f-electrons is taken into account explicitly, while the Coulomb interaction between conduction electrons and between f-electrons and conduction electrons is contained on the average in the parameters of the Hamiltonian, the hybridization interaction and the position of the f-level. In this paper, in particular, the Coulomb interaction between conduction electrons and f-electrons is studied with help of a mean-field approximation based on the slave-boson approach. It is found that the ferromagnetic exchange interaction, which is in competition with the hopping-induced antiferromagnetic interaction, leads to a non-trivial renormalization of the Kondo temperature and ferromagnetic instabilities.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ANDERSON LATTICE MODEL; DENSITY-FUNCTIONAL CALCULATION; FALICOV-KIMBALL MODEL; LARGE DIMENSIONS; THERMODYNAMICS; FLUCTUATIONS; TEMPERATURE; CDTE; MN; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/55175 |
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