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

doi:10.1016/j.jpcs.2018.02.015

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 Institute for Interdisciplinary Science

Research output: Contribution to journal › Article

1 Citation (Scopus)

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 language	English
Journal	Journal of Physics and Chemistry of Solids
DOIs	https://doi.org/10.1016/j.jpcs.2018.02.015
Publication status	Accepted/In press - Jan 1 2018

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

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Ootsuki, D., Ishii, H., Kudo, K., Nohara, M., Arita, M., Namatame, H., Taniguchi, M., Saini, N. L., & Mizokawa, T. (Accepted/In press). Interplay between spin-orbit interaction and stripe-type charge-orbital order of IrTe₂ Journal of Physics and Chemistry of Solids. https://doi.org/10.1016/j.jpcs.2018.02.015

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title = "Interplay between spin-orbit interaction and stripe-type charge-orbital order of IrTe2 ",

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",

year = "2018",

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doi = "10.1016/j.jpcs.2018.02.015",

language = "English",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

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TY - JOUR

T1 - Interplay between spin-orbit interaction and stripe-type charge-orbital order of IrTe2

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.

KW - 5d transition-metal compounds

KW - Angle-resolved photoemission spectroscopy

KW - Charge-orbital order

KW - Spin-orbit interaction

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