Local Moments in an Interacting Environment

Preprint

31 October 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9707003

Abstract

We discuss how local moment physics is modified by the presence of interactions in the conduction sea. Interactions in the conduction sea are shown to open up new symmetry channels for the exchange of spin with the localized moment. We illustrate this conclusion in the strong-coupling limit by carrying out a Schrieffer Wolff transformation for a local moment in an interacting electron sea, and show that these corrections become very severe in the approach to a Mott transition. As an example, we show how the Zhang Rice reduction of a two-band model is modified by these new effects.

Keywords

INTERACTING ENVIRONMENT
WOLFF TRANSFORMATION
SCHRIEFFER WOLFF
CONDUCTION SEA
MOMENT PHYSICS
INTERACTIONS
ELECTRON SEA
LOCAL MOMENT
RICE

All Related Versions

Version 1, 1997-07-01, ArXiv
Version 2, 1997-07-09, ArXiv
Version 3, 1997-10-31, ArXiv
Published version: Physical Review B, 57 (20), 12757.

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