The Effect of a Second Impurity on the Kondo Divergence
- 1 January 1972
- proceedings article
- Published by AIP Publishing in AIP Conference Proceedings
- Vol. 5 (1) , 1145-1149
- https://doi.org/10.1063/1.2953828
Abstract
The two‐impurity s‐d Hamiltonian with an added exchange term of the form − WS o · S 1 is examined; the equations of motion of the relevant Green's functions are solved self‐consistently. We find that the quantity G (ω) = N −1 ∑ k ( n k − ½)/(ω − ε k ) arising in the single‐impurity Kondo effect is replaced by G (ω)⇒ ½ [ G (ω + W ′)+ G (ω − W ′)] , where W ′ is an energy approximately equal to W .Keywords
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