Hubbard's repulsion, self-energy and quasiparticles: Application to YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7</inf>

M. M. Sánchez-López, J. Costa-Quintana, F. López-Aguilar, I. S. Sandalov

Research output: Contribution to journalArticleResearchpeer-review

1 Citation (Scopus)


The quasiparticle structure of YBa2Cu3O7 is calculated within several approximations to the self-energy (RPA, ERPA, Hubbard I) and the model potential LDA+AMF. The partial DOS and distribution of holes yielded by the different approaches are presented and compared with available experimental data.
Original languageEnglish
Pages (from-to)909-911
JournalPhysica B: Condensed Matter
Publication statusPublished - 1 Jan 1997


  • Hubbard model
  • YBa Cu O 2 3 7


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