Low-energy excitations in graphite studied by ultrahigh-resolution angle-resolved photoemission spectroscopy

K. Sugawara, T. Sato, S. Souma, T. Takahashi, H. Suematsu

Research output: Contribution to journalArticle

Abstract

We report ultrahigh-resolution angle-resolved photoemission results on kish graphite. We found an evidence for a sharp quasiparticle peak around K(H) point. Self-energy analysis of quasiparticle lifetime indicates presence of a strong electron-phonon coupling and the linear energy-dependence of scattering rate which shows marked deviation from the conventional Fermi-liquid theory.

Original languageEnglish
Pages (from-to)1531-1533
Number of pages3
JournalPhysica B: Condensed Matter
Volume403
Issue number5-9
DOIs
Publication statusPublished - 2008 Apr 1

Keywords

  • ARPES
  • Kish graphite
  • Quasiparticle lifetime

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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