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Crossover from Anderson- to Kondo-like behavior: Universality induced by spin-charge separation

Michael Bortz·Andreas Klümper·Christian Scheeren
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Abstract

The thermodynamics of a lattice regularized asymmetric Anderson impurity in a correlated host is obtained by an exact solution. The crossover from the Anderson- to the Kondo-regime is studied, thus making contact with predictions by scaling theory. On the basis of the exact solution, the transition to universal Kondo behavior is shown to be realized by a graduate separation of the energy scales of spin and charge excitations.

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Michael Bortz, Andreas Klümper, Christian Scheeren. 2005-05-23. Crossover from Anderson- to Kondo-like behavior: Universality induced by spin-charge separation. https://doi.org/10.1103/physrevb.71.144421

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