The exact Schrieffer-Wolff transformation

Raymond Chan; Miklós Gulácsi

doi:10.1080/14786430310001653107

The exact Schrieffer-Wolff transformation

Raymond Chan, Miklós Gulácsi^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

The effective s-d spin interaction is derived exactly for the single-impurity Anderson model via a unitary transformation. This unitary transformation was calculated up to infinite order and no restrictions were imposed upon the coefficients of the Hubbard interaction and the hybridization. We also discuss briefly the impact of the obtained result on the magnetic properties of several Kondo compounds. This will shed new light on the understanding of the competition between the Kondo effect and the Ruderman-Kittel-Kasuya-Yosida interaction and reinterpret the Doniach diagram.

Original language	English
Pages (from-to)	1265-1279
Number of pages	15
Journal	Philosophical Magazine
Volume	84
Issue number	12
DOIs	https://doi.org/10.1080/14786430310001653107
Publication status	Published - 21 Apr 2004

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10.1080/14786430310001653107

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AB - The effective s-d spin interaction is derived exactly for the single-impurity Anderson model via a unitary transformation. This unitary transformation was calculated up to infinite order and no restrictions were imposed upon the coefficients of the Hubbard interaction and the hybridization. We also discuss briefly the impact of the obtained result on the magnetic properties of several Kondo compounds. This will shed new light on the understanding of the competition between the Kondo effect and the Ruderman-Kittel-Kasuya-Yosida interaction and reinterpret the Doniach diagram.

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The exact Schrieffer-Wolff transformation

Abstract

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