Electronic structure of YBa2Cu3O7- including strong correlation effects

J. Costa-Quintana, F. Lapez-Aguilar, S. Balle, Roman Salvador

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11 Citations (Scopus)


The occupied and unoccupied valence-band density of states of YBa2Cu3O7- is determined considering a coherent potential which includes the Coulomb intrasite d-d correlation. The p states tend to be all occupied and, as a consequence, the most localized d states with the XZ symmetry tend to be unoccupied giving rise to an upper Hubbard band. This picture is in good agreement with the direct and inverse photoemission spectroscopies. © 1989 The American Physical Society.
Original languageEnglish
Pages (from-to)9675-9678
JournalPhysical Review B-Condensed Matter
Issue number13
Publication statusPublished - 1 Jan 1989


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