Interaction of impurities in the Anderson model

The interaction between two impurities with incomplete inner (d) shells in non-magnetic metals is studied on the basis of the Anderson model. The expression for the d-electron Green function with unlimited Coulomb repulsion U is calculated. The correlation effects on the impurity atoms are taken int...

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Veröffentlicht in:	Physics letters. A 1992-10, Vol.169 (6), p.469-474
Hauptverfasser:	Ilinskaya, A.V., Ilinski, K.N., Uzdin, V.M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Collective effects Condensed matter: electronic structure, electrical, magnetic, and optical properties Electron states Exact sciences and technology Exchange, correlation, dielectric and magnetic functions, plasmons Metals. Metallurgy Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The interaction between two impurities with incomplete inner (d) shells in non-magnetic metals is studied on the basis of the Anderson model. The expression for the d-electron Green function with unlimited Coulomb repulsion U is calculated. The correlation effects on the impurity atoms are taken into account but the interaction of electrons localized on different atoms is calculated in the Hartree-Fock approximation. It is shown that in the Kondo limit the density of states at the Fermi level oscillates with changing the distance between the impurities.
ISSN:	0375-9601 1873-2429
DOI:	10.1016/0375-9601(92)90829-B