Orbital excitations in CMR progenitor of LaMnO3 studied by resonant inelastic x-ray scattering

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dc.creatorInami, T.
dc.creatorIshihara, S.
dc.creatorKondo, H.
dc.creatorMizuki, J.
dc.creatorFukuda, T.
dc.creatorMaekawa, S.
dc.creatorNakao, H.
dc.creatorMatsumura, T.
dc.creatorHirota, K.
dc.creatorMurakami, Y.
dc.creatorEndoh, Y.
dc.date2001-09-27
dc.date.accessioned2026-07-07T02:42:51Z
dc.date.available2026-07-07T02:42:51Z
dc.descriptionWe report resonant inelastic x-ray scattering experiments of the orbital ordered manganite LaMnO3. When the incident photon energy is tuned near the Mn K absorption edge, the spectra reveal three features at 2.5 eV, 8 eV and 11 eV. The 8 eV and 11 eV peaks are considered charge-transfer type excitations. On the other hand, theoretical calculations identify the 2.5 eV peak as an orbital excitation across the Mott gap, i.e. an electron excitation from the lower Hubbard band with the d3x2-r2 and d3y2-r2 orbital characters to the upper Hubbard band with the dy2-z2 and dz2-x2 ones. The observed weak dispersion and characteristic azimuthal angle dependence of this new type of excitations are well reproduced by the theory which includes orbital degeneracy and strong electron correlation.
dc.description4 pages, 4figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0109509
dc.identifierhttp://arxiv.org/abs/cond-mat/0109509
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18307
dc.subjectStrongly Correlated Electrons
dc.titleOrbital excitations in CMR progenitor of LaMnO3 studied by resonant inelastic x-ray scattering
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