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Exact solution for the two-site correlated Kondo-Lattice Model - a limiting case for a metal

2002/11/28 by T. Hickel, Tilmann Hickel, Hickel, T. +5
Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #Quantum and electron transport phenomena #Strongly Correlated Electrons (cond-mat.str-el) #Surface and Thin Film Phenomena #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.cond-mat/0211670

13 pages, 7 figures

arxiv created 2002/11/28 · openalex publication_date 2002/11/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The correlated Kondo-lattice model is used to describe the interaction of electrons in a single conduction band with localized magnetic moments as well as their mutual repulsion. It is our intension to provide an analytical exact result for this model by considering a two-site cluster. An equation-of-motion approach as well as the spectral theorem is chosen to obtain the complete expression for the one-particle Green's function. In a forgoing article the problem has been solved for an insulator, the present paper is devoted to the technical more demanding task of a metal.

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