Momentum dependence of orbital excitations in Mott-insulating titanates

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dc.contributor.authorUlrich, Cen_AU
dc.contributor.authorAment, LJPen_AU
dc.contributor.authorGhiringhelli, Gen_AU
dc.contributor.authorBraicovich, Len_AU
dc.contributor.authorMoretti Sala, Men_AU
dc.contributor.authorPezzotta, Nen_AU
dc.contributor.authorSchmitt, Ten_AU
dc.contributor.authorKhaliullin, Gen_AU
dc.contributor.authorvan den Brink, Jen_AU
dc.contributor.authorRoth, Hen_AU
dc.contributor.authorLorenz, Ten_AU
dc.contributor.authorKeimer, Ben_AU
dc.date.accessioned2014-03-25T02:42:29Zen_AU
dc.date.available2014-03-25T02:42:29Zen_AU
dc.date.issued2009-09-04en_AU
dc.date.statistics2014-03-25en_AU
dc.description.abstractHigh-resolution resonant inelastic x-ray scattering has been used to determine the momentum dependence of orbital excitations in Mott-insulating LaTiO(3) and YTiO(3) over a wide range of the Brillouin zone. The data are compared to calculations in the framework of lattice-driven and superexchange-driven orbital ordering models. A superexchange model in which the experimentally observed modes are attributed to two-orbiton excitations yields the best description of the data. 2008, American Physical Society.en_AU
dc.identifier.articlenumber107205en_AU
dc.identifier.citationUlrich, C., Ament, L. J. P., Ghiringhelli, G., Braicovich, L., Moretti Sala, M., Pezzotta, N., Schmitt, T., Khaliullin, G., van den Brink, J., Roth, H., Lorenz, T., & Keimer, B. (2012). Momentum dependence of orbital excitations in Mott-insulating titanates. Physical Review Letters, 103(10), 107205. doi:10.1103/PhysRevLett.103.107205en_AU
dc.identifier.govdoc4542en_AU
dc.identifier.issn0031-9007en_AU
dc.identifier.issue10en_AU
dc.identifier.journaltitlePhysical Review Lettersen_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevLett.103.107205en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5299en_AU
dc.identifier.volume103en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectX-ray lasersen_AU
dc.subjectOrbitsen_AU
dc.subjectTitanatesen_AU
dc.subjectTitanium oxidesen_AU
dc.subjectElectronsen_AU
dc.subjectValenceen_AU
dc.titleMomentum dependence of orbital excitations in Mott-insulating titanatesen_AU
dc.typeJournal Articleen_AU
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