Electronic states of high-Tc cuprate in the anomalous metallic regime

Hiroaki Matsueda, Kenji Takanaka

Research output: Contribution to journalConference articlepeer-review


By use of the d-p model for cuprate, we investigate the density of states. One of the advantages in our method is to use the retarded propagator matrix which is defined by several composite particles, for example, pure fermion, dressed fermion with local spin fluctuation, and one with global fluctuation between nearest neighbour Cu sites. The shapes of the density of states rapidly change by doping and temperature because the propagator includes new poles and some mean fields which easily change by those external parameters. The competition between the composite states with spin fluctuation may originate from the spin gap formation observed in high-Tc cuprate.

Original languageEnglish
Pages (from-to)33-34
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Publication statusPublished - 2003 May
Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: 2002 Aug 202002 Aug 27


  • Composite operator
  • Equation of motion method
  • High-T cuprate
  • Intersite spin correlation


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