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 - Jan 1 2018

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.",
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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

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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 - Spin-orbit interaction

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