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Spatially dependent zero-frequency response functions and correlation functions in the Kondo model

Chen, Kan and Jayaprakash, C and Krishnamurthy, HR (1992) Spatially dependent zero-frequency response functions and correlation functions in the Kondo model. In: Physical Review B: Condensed Matter, 45 (10). pp. 5368-5386.

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Official URL: http://prb.aps.org/abstract/PRB/v45/i10/p5368_1

Abstract

We present the details of a formalism for calculating spatially varying zero-frequency response functions and equal-time correlation functions in models of magnetic and mixed-valence impurities of metals. The method is based on a combination of perturbative, thermodynamic scaling theory [H. R. Krishna-murthy and C. Jayaprakash, Phys. Rev. B 30, 2806 (1984)] and a nonperturbative technique such as the Wilson renormalization group. We illustrate the formalism for the spin-1/2 Kondo problem and present results for the conduction-spin-density�impurity-spin correlation function and conduction-electron charge density near the impurity. We also discuss qualitative features that emerge from our calculations and discuss how they can be carried over to the case of realistic models for transition-metal impurities.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to The American Physical Society.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 30 May 2011 08:48
Last Modified: 30 May 2011 08:48
URI: http://eprints.iisc.ernet.in/id/eprint/37623

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