S. Akatsuka
;
M. Sakano
;
T. Yamamoto
;
T. Nomoto
;
R. Arita
;
R. Murata
;
T. Sasagawa
;
K. Watanabe
(National Institute for Materials Science
)
;
T. Taniguchi
(National Institute for Materials Science)
;
N. Mitsuishi
;
M. Kitamura
;
K. Horiba
;
K. Sugawara
;
S. Souma
;
T. Sato
;
H. Kumigashira
;
K. Shinokita
;
H. Wang
;
K. Matsuda
;
S. Masubuchi
;
T. Machida
;
K. Ishizaka
Collection
Citation
Description:
(abstract)We have fabricated a 180°-twisted bilayer ReSe2 by stacking two centrosymmetric monolayer ReSe2 flakes in opposite directions, which is expected to lose spatial inversion symmetry. By the second harmonic generation and angle-resolved photoemission spectroscopy, we successfully observed spatial inversion symmetry breaking and emergent band dispersions. The band calculation shows the finite lifting of spin degeneracy (~50 meV) distinct from natural monolayer and bilayer ReSe2. Our results demonstrate that the spin-momentum locked state, which leads to spintronic functions and Berry-curvature-related phenomena, can be realized even with the stacking of centrosymmetric monolayers.
Rights:
Keyword: Twisted bilayer ReSe2, spatial inversion-symmetry breaking, spin-momentum locked state
Date published: 2024-06-03
Publisher: American Physical Society (APS)
Journal:
- Physical Review Research (ISSN: 26431564) vol. 6 issue. 2 L022048
Funding:
- Core Research for Evolutional Science and Technology JPMJCR18T1
- Core Research for Evolutional Science and Technology JPMJCR20B4
- Japan Science and Technology Agency JPMJSP2106
- Japan Science and Technology Agency JPMJPR20A8
- Japan Society for the Promotion of Science JP20H01834
- Japan Society for the Promotion of Science JP20H05664
- Japan Society for the Promotion of Science JP21H01012
- Japan Society for the Promotion of Science JP21H01757
- Japan Society for the Promotion of Science JP21H04652
- Japan Society for the Promotion of Science JP21H05232
- Japan Society for the Promotion of Science JP21H05233
- Japan Society for the Promotion of Science JP21H05234
- Japan Society for the Promotion of Science JP21H05235
- Japan Society for the Promotion of Science JP21H05236
- Japan Society for the Promotion of Science JP21K18181
- Japan Society for the Promotion of Science JP22K18986
- Japan Society for the Promotion of Science JP23H02052
- Japan Society for the Promotion of Science JP23H05469
- Ministry of Education, Culture, Sports, Science and Technology 2021G141
- Ministry of Education, Culture, Sports, Science and Technology 2023G088
- Ministry of Education, Culture, Sports, Science and Technology 2018S2-001
- Ministry of Education, Culture, Sports, Science and Technology 2021S2-001
Manuscript type: Publisher's version (Version of record)
MDR DOI:
First published URL: https://doi.org/10.1103/physrevresearch.6.l022048
Related item:
Other identifier(s):
Contact agent:
Updated at: 2025-02-28 12:30:29 +0900
Published on MDR: 2025-02-28 12:30:29 +0900
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