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Variational Approach for the Anderson Model: Impurity Pair
Author(s) -
Oleś A. M.,
Chao K. A.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220990221
Subject(s) - impurity , anderson impurity model , moment (physics) , condensed matter physics , ferromagnetism , magnetic impurity , variational method , magnetic moment , coupling (piping) , physics , materials science , quantum mechanics , metallurgy
With a Variational method the effect is studied of impurity‐impurity interaction on the formation of local moments within the framework of the Anderson model. Compared to the similar calculation on. a single impurity, the local moment is enhanced, especially when the two impurities are nearest neighbours of each other with a ferromagnetic direct coupling.
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