The spin state transition in LaCoO$_{3}$; revising a revision

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dc.creatorHaverkort, M. W.
dc.creatorHu, Z.
dc.creatorCezar, J. C.
dc.creatorBurnus, T.
dc.creatorHartmann, H.
dc.creatorReuther, M.
dc.creatorZobel, C.
dc.creatorLorenz, T.
dc.creatorTanaka, A.
dc.creatorBrookes, N. B.
dc.creatorHsieh, H. H.
dc.creatorLin, H. -J.
dc.creatorChen, C. T.
dc.creatorTjeng, L. H.
dc.date2006-10-17
dc.date.accessioned2026-07-07T07:27:33Z
dc.date.available2026-07-07T07:27:33Z
dc.descriptionUsing soft x-ray absorption spectroscopy and magnetic circular dichroism at the Co-$L_{2,3}$ edge we reveal that the spin state transition in LaCoO$_{3}$ can be well described by a low-spin ground state and a triply-degenerate high-spin first excited state. From the temperature dependence of the spectral lineshapes we find that LaCoO$_{3}$ at finite temperatures is an inhomogeneous mixed-spin-state system. Crucial is that the magnetic circular dichroism signal in the paramagnetic state carries a large orbital momentum. This directly shows that the currently accepted low-/intermediate-spin picture is at variance. Parameters derived from these spectroscopies fully explain existing magnetic susceptibility, electron spin resonance and inelastic neutron data.
dc.identifierhttps://arxiv.org/abs/cond-mat/0610457
dc.identifierhttp://arxiv.org/abs/cond-mat/0610457
dc.identifierPhys. Rev. Lett. 97, 176405 (2006)
dc.identifierdoi:10.1103/PhysRevLett.97.176405
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/117414
dc.subjectStrongly Correlated Electrons
dc.titleThe spin state transition in LaCoO$_{3}$; revising a revision
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