Two-impurity kondo problem

Jayaprakash, C. ; Krishnamurthy, H. R. ; Wilkins, J. W. (1981) Two-impurity kondo problem Physical Review Letters, 47 (10). pp. 737-740. ISSN 0031-9007

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The two-impurity Kondo problem is studied by use of perturbative scaling techniques. The physics is determined by the interplay between the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between the two impurity spins and the Kondo effect. In particular, for a strong ferromagnetic RKKY interaction the susceptibility exhibits three structures as the temperature is lowered, corresponding to the ferromagnetic locking together of the two impurity spins followed by a two-stage freezing out of their local moments by the conduction electrons due to the Kondo effect.

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Deposited On:16 Nov 2010 09:44
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