Interplay between spin-orbit interaction and stripe-type charge-orbital order of IrTe2

Daiki Ootsuki, Hiroyuki Ishii, Kazutaka Kudo, Minoru Nohara, Masashi Arita, Hirofumi Namatame, Masaki Taniguchi, Naurang L. Saini, Takashi Mizokawa

    Research output: Contribution to journalArticle

    Abstract

    We have studied the electronic structure of the stripe-type charge-orbital ordered phase of IrTe2 by means of angle-resolved photoemission spectroscopy. An electron pocket at the Brillouin zone boundary and hole Fermi surfaces around its center are clearly observed in agreement with the band structure calculation for the stripe-type charge-orbital ordered phase. The present study indicates that the hole and electron Fermi surfaces can survive due to the strong Te 5p spin-orbit coupling even under the charge-orbital order. The participant of the Te 5p orbitals to the conduction band provides an interesting interplay between the charge-orbital order and the spin-orbit interaction in IrTe2.

    Original languageEnglish
    JournalJournal of Physics and Chemistry of Solids
    DOIs
    Publication statusAccepted/In press - 2018 Jan 1

    Fingerprint

    Fermi surface
    spin-orbit interactions
    Orbits
    orbitals
    Electrons
    Photoelectron spectroscopy
    Conduction bands
    Band structure
    Electronic structure
    Fermi surfaces
    Brillouin zones
    conduction bands
    electrons
    photoelectric emission
    electronic structure
    orbits
    spectroscopy

    Keywords

    • 5d transition-metal compounds
    • Angle-resolved photoemission spectroscopy
    • Charge-orbital order
    • Spin-orbit interaction

    ASJC Scopus subject areas

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

    Cite this

    Interplay between spin-orbit interaction and stripe-type charge-orbital order of IrTe2 . / Ootsuki, Daiki; Ishii, Hiroyuki; Kudo, Kazutaka; Nohara, Minoru; Arita, Masashi; Namatame, Hirofumi; Taniguchi, Masaki; Saini, Naurang L.; Mizokawa, Takashi.

    In: Journal of Physics and Chemistry of Solids, 01.01.2018.

    Research output: Contribution to journalArticle

    Ootsuki, Daiki ; Ishii, Hiroyuki ; Kudo, Kazutaka ; Nohara, Minoru ; Arita, Masashi ; Namatame, Hirofumi ; Taniguchi, Masaki ; Saini, Naurang L. ; Mizokawa, Takashi. / Interplay between spin-orbit interaction and stripe-type charge-orbital order of IrTe2 In: Journal of Physics and Chemistry of Solids. 2018.
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    abstract = "We have studied the electronic structure of the stripe-type charge-orbital ordered phase of IrTe2 by means of angle-resolved photoemission spectroscopy. An electron pocket at the Brillouin zone boundary and hole Fermi surfaces around its center are clearly observed in agreement with the band structure calculation for the stripe-type charge-orbital ordered phase. The present study indicates that the hole and electron Fermi surfaces can survive due to the strong Te 5p spin-orbit coupling even under the charge-orbital order. The participant of the Te 5p orbitals to the conduction band provides an interesting interplay between the charge-orbital order and the spin-orbit interaction in IrTe2.",
    keywords = "5d transition-metal compounds, Angle-resolved photoemission spectroscopy, Charge-orbital order, Spin-orbit interaction",
    author = "Daiki Ootsuki and Hiroyuki Ishii and Kazutaka Kudo and Minoru Nohara and Masashi Arita and Hirofumi Namatame and Masaki Taniguchi and Saini, {Naurang L.} and Takashi Mizokawa",
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    AU - Ootsuki, Daiki

    AU - Ishii, Hiroyuki

    AU - Kudo, Kazutaka

    AU - Nohara, Minoru

    AU - Arita, Masashi

    AU - Namatame, Hirofumi

    AU - Taniguchi, Masaki

    AU - Saini, Naurang L.

    AU - Mizokawa, Takashi

    PY - 2018/1/1

    Y1 - 2018/1/1

    N2 - We have studied the electronic structure of the stripe-type charge-orbital ordered phase of IrTe2 by means of angle-resolved photoemission spectroscopy. An electron pocket at the Brillouin zone boundary and hole Fermi surfaces around its center are clearly observed in agreement with the band structure calculation for the stripe-type charge-orbital ordered phase. The present study indicates that the hole and electron Fermi surfaces can survive due to the strong Te 5p spin-orbit coupling even under the charge-orbital order. The participant of the Te 5p orbitals to the conduction band provides an interesting interplay between the charge-orbital order and the spin-orbit interaction in IrTe2.

    AB - We have studied the electronic structure of the stripe-type charge-orbital ordered phase of IrTe2 by means of angle-resolved photoemission spectroscopy. An electron pocket at the Brillouin zone boundary and hole Fermi surfaces around its center are clearly observed in agreement with the band structure calculation for the stripe-type charge-orbital ordered phase. The present study indicates that the hole and electron Fermi surfaces can survive due to the strong Te 5p spin-orbit coupling even under the charge-orbital order. The participant of the Te 5p orbitals to the conduction band provides an interesting interplay between the charge-orbital order and the spin-orbit interaction in IrTe2.

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    KW - Charge-orbital order

    KW - Spin-orbit interaction

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