Mesoscopic Phase Separation in the Model with Competing Jahn-Teller and Coulomb Interaction

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dc.creatorKabanov, V. V.
dc.creatorMertelj, T.
dc.creatorMihailovic, D.
dc.date2004-08-31
dc.date.accessioned2026-07-07T03:00:07Z
dc.date.available2026-07-07T03:00:07Z
dc.descriptionWe have derived the interaction between Jahn-Teller centers due to optical and acoustic phonons. Without Coulomb repulsion the model leads to a global phase separation at low temperature. At long distances Coulomb repulsion always dominates the short range attraction leading to phase separation on a short scale. On the basis of Monte-Carlo simulation of microscopic lattice-gas model we have formulated an effective phenomenological model. In the limit of low density of polarons, phase separation takes place in the form of charged bubbles. In the limit of high density, charge segregation occurs on domain walls.
dc.identifierhttps://arxiv.org/abs/cond-mat/0408695
dc.identifierhttp://arxiv.org/abs/cond-mat/0408695
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24751
dc.subjectDisordered Systems and Neural Networks
dc.subjectStrongly Correlated Electrons
dc.titleMesoscopic Phase Separation in the Model with Competing Jahn-Teller and Coulomb Interaction
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