Many-body interactions in Bi-based high-Tc cuprates studied by angle-resolved photoemission spectroscopy

T. Sato, H. Matsui, K. Terashima, T. Takahashi, H. Ding, H. B. Yang, S. C. Wang, T. Fujii, T. Watanabe, A. Matsuda, T. Terashima, K. Kadowaki

Research output: Contribution to journalArticlepeer-review

Abstract

Systematic angle-resolved photoemission spectroscopy (ARPES) has been performed on Bi2Sr2Can-1CunO 2n+4 (n=1-3). For n=2 and 3, the dispersion kink becomes pronounced on approaching (π, 0) below Tc, while a kink appears only around the nodal direction above Tc. This indicates that the coupling of electrons with magnetic resonance mode plays a dominant role in the superconducting state for multi-layered cuprates. Ultrahigh-resolution (ΔE=1.3 meV) ARPES result for n=2 indicates that spectra around (π, 0) below Tc is understood in terms of (1) the coupling of electrons with the resonance mode, (2) the real-space inhomogeneity, and (3) the impurity states in the vicinity of EF.

Original languageEnglish
Pages (from-to)628-631
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume67
Issue number1-3
DOIs
Publication statusPublished - 2006 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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