Band Jahn-Teller effects and Peierls instability in IrTe2

D. Ootsuki, S. Pyon, K. Kudo, M. Nohara, M. Horio, T. Yoshida, A. Fujimori, M. Arita, H. Anzai, H. Namatame, M. Taniguchi, N. L. Saini, T. Mizokawa

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

We report a photoemission spectroscopy study on IrTe2 which exhibits an interesting lattice distortion below 270 K. Ir 4f core-level photoemission spectrum is broadened in going from 300K to 40K. This result indicates the charge moderation of Ir 5d electrons. Angle-resolved photoemission spectroscopy(ARPES) result at 300K shows multi-band Fermi surfaces with six-fold symmetry which are basically consistent with band structure calculations. At the distorted phase, the inner Fermi surfaces become quasi one-dimensional Fermi surface due to the lattice distortion.

Original languageEnglish
Article number012018
JournalJournal of Physics: Conference Series
Volume428
Issue number1
DOIs
Publication statusPublished - 2013 Jan 1
Externally publishedYes
Event21st International Symposium on the Jahn-Teller Effect 2012 - Tsukuba, Japan
Duration: 2012 Aug 262012 Aug 31

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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