Orbital correlations in monolayer manganites - From spin t-J model to orbital t-J model

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dc.creatorDaghofer, M.
dc.creatorOles, A. M.
dc.date2007-03-05
dc.date.accessioned2026-07-07T08:13:37Z
dc.date.available2026-07-07T08:13:37Z
dc.descriptionOn the example of monolayer manganites we show that the theoretical ideas developed long ago along the derivation of the spin t-J model from the Hubbard model are nowadays very helpful in strongly correlated oxides with partly filled degenerate orbitals. We analyze a realistic orbital t-J model for e_g electrons in La_{1-x}Sr_{1+x}MnO_4 monolayer manganites, and discuss the evolution of spin and orbital correlations under increasing doping by performing exact diagonalization of finite clusters, with electronic kinetic energy determined self-consistently at finite temperature by classical Monte Carlo for t_2g spins. Several experimental results are reproduced.
dc.descriptionAccepted for Acta Physica Polonica A
dc.identifierhttps://arxiv.org/abs/cond-mat/0703127
dc.identifierhttp://arxiv.org/abs/cond-mat/0703127
dc.identifierActa Physica Polonica A, vol. 111, p. 497 (2007)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/132830
dc.subjectStrongly Correlated Electrons
dc.titleOrbital correlations in monolayer manganites - From spin t-J model to orbital t-J model
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