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 articlepeer-review

    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
    Event21st International Symposium on the Jahn-Teller Effect 2012 - Tsukuba, Japan
    Duration: Aug 26 2012Aug 31 2012

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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