Exact solution of a Kondo lattice model

Details Exact solution of a Kondo lattice model Exact solution of a Kondo lattice model

1999-11-04

arxiv.org/abs/cond-mat/9911050v1

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, Revtex, no figure

Scientific paper

An integrable Kondo lattice model, which describes a strongly correlated electron host interacting with a spin-1/2 lattice, is proposed. It is found that with the variations of the Kondo coupling J, the hole concentration n_h and the magnetic field H, the system may fall into a variety of phases. The phase boundaries of the ground state are determined exactly. The marginal excitations and the quantum critical behavior at the phase boundaries are discussed.

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