Orbital-assisted metal-insulator transition in VO$_{2}$

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dc.creatorHaverkort, M. W.
dc.creatorHu, Z.
dc.creatorTanaka, A.
dc.creatorReichelt, W.
dc.creatorStreltsov, S. V.
dc.creatorKorotin, M. A.
dc.creatorAnisimov, V. I.
dc.creatorHsieh, H. H.
dc.creatorLin, H. -J.
dc.creatorChen, C. T.
dc.creatorKhomskii, D. I.
dc.creatorTjeng, L. H.
dc.date2005-09-14
dc.date.accessioned2026-07-07T06:25:35Z
dc.date.available2026-07-07T06:25:35Z
dc.descriptionWe found direct experimental evidence for an orbital switching in the V 3d states across the metal-insulator transition in VO$_{2}$. We have used soft-x-ray absorption spectroscopy at the V $L_{2,3}$ edges as a sensitive local probe, and have determined quantitatively the orbital polarizations. These results strongly suggest that, in going from the metallic to the insulating state, the orbital occupation changes in a manner that charge fluctuations and effective band widths are reduced, that the system becomes more 1-dimensional and more susceptible to a Peierls-like transition, and that the required massive orbital switching can only be made if the system is close to a Mott insulating regime.
dc.identifierhttps://arxiv.org/abs/cond-mat/0509368
dc.identifierhttp://arxiv.org/abs/cond-mat/0509368
dc.identifierPhys. Rev. Lett. 95, 196404 (2005)
dc.identifierdoi:10.1103/PhysRevLett.95.196404
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96868
dc.subjectStrongly Correlated Electrons
dc.titleOrbital-assisted metal-insulator transition in VO$_{2}$
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