Journal of Physics F Metal Physics · 1975 · 35 citations · 5 references
Natural SciencesPhysicsCondensed Matter PhysicsMagnetic MaterialsAntiferromagnetismElectron CorrelationExchange InteractionsMagnetic Properties Of SolidsMagnetic SusceptibilityMagnetism In SolidsDisordered Magnetic SystemsExchange CouplingExchange-correlation FunctionalsGreen's Function FormulationGreen's Function Representation FormulaIndirect ExchangeIndirect Interaction StrengthMagnetic Exchange Interactions
A general theory of indirect exchange interaction in a disordered magnet is given by the use of a one electron green function. For a model green function an exact expression of the effective indirect interaction is obtained and evaluated numerically for some degrees of disorder.
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