Charge and magnetic ordering in two-orbital double-exchange model for manganites

Abstract

Phase digram of half-doped perovskite manganites is studied within the extended double-exchange model. To demonstrate the role of orbital degrees of freedom both oneand two-orbital models are examined. A rich phase diagram is obtained in the mean-filed theory at zero temperature as a function of J (antiferromagnetic (AFM) superexchange interaction) and V… (More)

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