Doping change and distortion effect on double-exchange ferromagnetism

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dc.creatorVan-Nham, Phan
dc.creatorMinh-Tien, Tran
dc.date2005-12-13
dc.date.accessioned2026-07-07T06:53:18Z
dc.date.available2026-07-07T06:53:18Z
dc.descriptionDoping change and distortion effect on the double-exchange ferromagnetism are studied within a simplified double-exchange model. The presence of distortion is modelled by introducing the Falicov-Kimball interaction between itinerant electrons and classical variables. By employing the dynamical mean-field theory the charge and spin susceptibility are exactly calculated. It is found that there is a competition between the double-exchange induced ferromagnetism and disorder-order transition. At low temperature various long-range order phases such as charge ordered and segregated phases coexist with ferromagnetism depending on doping and distortion. A rich phase diagram is obtained.
dc.description8 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0512265
dc.identifierhttp://arxiv.org/abs/cond-mat/0512265
dc.identifierPhys. Rev. B 72, 214418 (2005)
dc.identifierdoi:10.1103/PhysRevB.72.214418
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/105540
dc.subjectStrongly Correlated Electrons
dc.titleDoping change and distortion effect on double-exchange ferromagnetism
dc.typetext

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