Extended and localized states in the periodic Anderson model

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Date
1986-12
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American Physical Society
Abstract

The renormalized quasiparticle states are derived for a periodic Anderson model with a general hybridization matrix element between conduction electrons with two degrees of freedom and f electrons with N degrees of freedom. Only two out of N local f states form the extended quasi-particle bands while N−2 localized states remain. As an illustration we show that the self-energy due to the Kondo effect produces quasiparticle bands and a gap as obtained in the Kondo-boson approach.

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physics, condensed matter
Citation
Lee, T. K.; Zhang, F. C., "Extended and localized states in the periodic Anderson model," Phys. Rev. B 34, 8114 DOI: http://dx.doi.org/10.1103/PhysRevB.34.8114