Gutzwiller Variational Approximation to the Heavy-Fermion Ground State of the Periodic Anderson Model
- 26 August 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 55 (9), 995-998
- https://doi.org/10.1103/physrevlett.55.995
Abstract
A variational wave function for the Kondo-lattice limit of the periodic Anderson model is evaluated with a Gutzwiller approximation. We obtain a characteristic energy from this coherent wave function of the Kondo form but with a different exponent in the case of finite degeneracy. The effective mass and charge and spin susceptibilities are evaluated, and only in the case of large degeneracy and not too small hybridization strength is a heavy-Fermi-liquid state stable against magnetic order.Keywords
This publication has 17 references indexed in Scilit:
- Normal-state properties of heavy-electron systemsPhysical Review B, 1985
- Heavy-fermion systemsReviews of Modern Physics, 1984
- Stability of the Kondo lattice in the large-limitPhysical Review B, 1984
- Heavy-electron superconductors, spin fluctuations, and triplet pairingPhysical Review B, 1984
- On the theory of superconductivity in Kondo lattice systemsZeitschrift für Physik B Condensed Matter, 1984
- -Wave Superconductivity in UPhysical Review Letters, 1984
- Normal: an almost localized Fermi liquidReviews of Modern Physics, 1984
- Phase diagram of the Kondo latticePhysical Review B, 1979
- Application of Gutzwiller's Variational Method to the Metal-Insulator TransitionPhysical Review B, 1970
- Correlation of Electrons in a NarrowBandPhysical Review B, 1965