Quentin France
;
Yunhyeon Jeong
;
Akinori Kamiyama
;
Takaaki Mano
;
Ken-ichi Sasaki
;
Masahiro Hotta
;
Go Yusa
Collection
Citation
Description:
(abstract)We electrically excite the incompressible region of a two-dimensional electron liquid in the fractional quantum
Hall state at 𝜈 = 2/3 and study optically probe the collective excitations in both the edge and bulk via photoluminescence spectral energy shifts. Applying a voltage pulse with an offset significantly enhances the excitation signal. Real space and time-resolved measurements reveal the dynamics of the bulk excitations, with estimated group velocity of approximately 3E+4 m/s.
Rights:
Keyword: Edge states, Fractional quantum hall effect, Surface plasmons, Topological materials, GaAs, Time-resolved photoluminescence
Date published: 2025-08-05
Publisher: American Physical Society (APS)
Journal:
- Physical Review Letters (ISSN: 00319007) vol. 135 issue. 6 066203
Funding:
- Japan Society for the Promotion of Science 19H05603
- Japan Society for the Promotion of Science 21H05182
- Japan Society for the Promotion of Science 21H05188
- Japan Society for the Promotion of Science 24H00399
- Ministry of Education, Culture, Sports, Science and Technology
Manuscript type: Publisher's version (Version of record)
MDR DOI:
First published URL: https://doi.org/10.1103/4bp5-9ryg
Related item:
Other identifier(s):
Contact agent:
Updated at: 2025-08-27 16:30:20 +0900
Published on MDR: 2025-08-27 16:18:55 +0900
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