What drives the charge/orbital ordering in La0.5Sr1.5MnO4: Jahn-Teller distortion versus orbital ordering

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dc.creatorStaub, U.
dc.creatorScagnoli, V.
dc.creatorMulders, A. M.
dc.creatorJanousch, M.
dc.creatorHonda, Z.
dc.creatorTonnerre, J. M.
dc.date2006-03-20
dc.date.accessioned2026-07-07T07:04:49Z
dc.date.available2026-07-07T07:04:49Z
dc.descriptionTemperature dependences of a magnetic and an orbital Bragg reflection at the Mn L2 and L3 edges of La0.5Sr1.5MnO4 have been collected. The temperature evolution of the orbital reflection depend strongly on the x-ray energy and reflects the different order parameteres for orbitals and Jahn-Teller distortions. The gradual increase of the orbital order parameter indicates that the orbital order and not the Jahn-Teller distortion drives the metal-insulator transition. Correspondingly, the orbital-orbital (super) exchange interaction dominates over the Jahn-Teller strain-field interaction.
dc.description8 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0603497
dc.identifierhttp://arxiv.org/abs/cond-mat/0603497
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109461
dc.subjectStrongly Correlated Electrons
dc.titleWhat drives the charge/orbital ordering in La0.5Sr1.5MnO4: Jahn-Teller distortion versus orbital ordering
dc.typetext

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