Spin-state polaron in lightly hole-doped LaCoO_3

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dc.creatorPodlesnyak, A.
dc.creatorRussina, M.
dc.creatorFurrer, A.
dc.creatorAlfonsov, A.
dc.creatorVavilova, E.
dc.creatorKataev, V.
dc.creatorBüchner, B.
dc.creatorSträssle, Th.
dc.creatorPomjakushina, E.
dc.creatorConder, K.
dc.creatorKhomskii, D. I.
dc.date2008-04-18
dc.date.accessioned2026-07-07T12:12:16Z
dc.date.available2026-07-07T12:12:16Z
dc.descriptionInelastic neutron scattering (INS), electron spin (ESR) and nuclear magnetic resonance (NMR) measurements were employed to establish the origin of the strong magnetic signal in lightly hole-doped La_{1-x}Sr_xCoO_3, x=0.002. Both, INS and ESR low temperature spectra show intense excitations with large effective g-factors ~10-18. NMR data indicate the creation of extended magnetic clusters. From the Q-dependence of the INS magnetic intensity we conclude that the observed anomalies are caused by the formation of octahedrally shaped spin-state polarons comprising seven Co ions.
dc.description10 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0804.3059
dc.identifierhttp://arxiv.org/abs/0804.3059
dc.identifierPhys. Rev. Lett. 101, 247603 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.247603
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/210491
dc.subjectStrongly Correlated Electrons
dc.titleSpin-state polaron in lightly hole-doped LaCoO_3
dc.typetext

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