Double-Exchange Model: Phase Diagram at Zero-Temperature

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dc.creatorPekker, David
dc.creatorMukhopadhyay, Swagatam
dc.creatorTrivedi, Nandini
dc.creatorGoldbart, Paul M.
dc.date2005-02-25
dc.date.accessioned2026-07-25T23:24:51Z
dc.descriptionThe analytical zero-temperature phase diagram of the double exchange model for classical background spins as a function of the carrier density and Hund's coupling in the entire range of these parameters is presented. By constructing a continuum field theory we explore the possibility of a continuous phase transition from ferromagnetic state to a gently varying textured state. We find such a transition in and below two dimensions and show that the emerging stable state is a spin-spiral which survives the tendency towards phase separation into commonly considered phases, and is also energetically favored to the canted state, for low carrier density.
dc.identifierhttps://arxiv.org/abs/cond-mat/0502621
dc.identifierhttp://arxiv.org/abs/cond-mat/0502621
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/98244
dc.subjectStrongly Correlated Electrons
dc.titleDouble-Exchange Model: Phase Diagram at Zero-Temperature
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