Coherent and Incoherent States of Electron-doped SrTiO3

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dc.creatorIshida, Y.
dc.creatorEguchi, R.
dc.creatorMatsunami, M.
dc.creatorHoriba, K.
dc.creatorTaguchi, M.
dc.creatorChainani, A.
dc.creatorSenba, Y.
dc.creatorOhashi, H.
dc.creatorOhta, H.
dc.creatorShin, S.
dc.date2007-12-19
dc.date.accessioned2026-07-07T09:18:24Z
dc.date.available2026-07-07T09:18:24Z
dc.descriptionResonant photoemission at the Ti 2p and O 1s edges on a Nb-doped SrTiO3 thin film revealed that the coherent state (CS) at the Fermi level (EF) had mainly Ti 3d character whereas the incoherent in-gap state (IGS) positioned ~1.5 eV below EF had mixed character of Ti 3d and O 2p states. This indicates that the IGS is formed by a spectral-weight transfer from the CS and subsequent spectral-weight redistribution through d-p hybridization. We discuss the evolution of the excitation spectrum with 3d band filling and rationalize the IGS through a mechanism similar to that proposed by Haldane and Anderson.
dc.identifierhttps://arxiv.org/abs/0712.3083
dc.identifierhttp://arxiv.org/abs/0712.3083
dc.identifierPhys. Rev. Lett. 100, 056401 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.056401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/154012
dc.subjectStrongly Correlated Electrons
dc.titleCoherent and Incoherent States of Electron-doped SrTiO3
dc.typetext

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