Photogalvanic spectroscopy on MnBi2Te4 topological insulator thin films

被引:1
|
作者
Takagi, Tsubasa [1 ,2 ,3 ]
Watanabe, Ryota [1 ,2 ]
Yoshimi, Ryutaro [3 ]
Tsukazaki, Atsushi [4 ]
Takahashi, Kei S. [3 ]
Kawasaki, Masashi [1 ,2 ,3 ]
Tokura, Yoshinori [1 ,3 ,5 ]
Ogawa, Naoki [3 ]
机构
[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
[2] Univ Tokyo, Quantum Phase Elect Ctr QPEC, Bunkyo Ku, Tokyo 1138656, Japan
[3] RIKEN Ctr Emergent Matter Sci CEMS, Wako, Saitama 3510198, Japan
[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[5] Univ Tokyo, Tokyo Coll, Bunkyo Ku, Tokyo 1138656, Japan
关键词
PHOTOCURRENT;
D O I
10.1063/5.0193680
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate zero-bias mid-infrared photocurrent generation in topological insulator MnBi2Te4 thin films. The symmetry breakings at the surface and interfaces lead to the coexistence of Dirac and Rashba band states, which enable two kinds of photogalvanic responses. One is the magneto-photogalvanic effect in the presence of an external in-plane magnetic field perpendicular to photocurrent direction, and the other is the light-polarization-dependent linear photogalvanic effect arising from in-plane symmetry breakings, both observed up to room temperature. We disentangle these contributions by light-polarization and temperature dependent spectroscopy under the varying magnetic field.
引用
收藏
页数:5
相关论文
共 50 条
  • [1] Floquet engineering of magnetic topological insulator MnBi2Te4 films
    Zhu, Tongshuai
    Wang, Huaiqiang
    Zhang, Haijun
    PHYSICAL REVIEW B, 2023, 107 (08)
  • [2] Spin and Orbital Moments of Magnetic Topological Insulator MnBi2Te4 Epitaxial Thin Films
    Liu, Wenqing (wenqing.liu@liverpool.ac.uk), 1600, Institute of Electrical and Electronics Engineers Inc.
  • [3] Progress on the antiferromagnetic topological insulator MnBi2Te4
    Shuai Li
    Tianyu Liu
    Chang Liu
    Yayu Wang
    Hai-Zhou Lu
    X.C.Xie
    NationalScienceReview, 2024, 11 (02) : 33 - 49
  • [4] Spin and Orbital Moments of Magnetic Topological Insulator MnBi2Te4 Epitaxial Thin Films
    Sun, Jiabao
    Liu, Shanshan
    Xiu, Faxian
    Liu, Wenqing
    2024 IEEE INTERNATIONAL MAGNETIC CONFERENCE-SHORT PAPERS, INTERMAG SHORT PAPERS, 2024,
  • [5] Progress on the antiferromagnetic topological insulator MnBi2Te4
    Li, Shuai
    Liu, Tianyu
    Liu, Chang
    Wang, Yayu
    Lu, Hai-Zhou
    Xie, X. C.
    NATIONAL SCIENCE REVIEW, 2024, 11 (02)
  • [6] Transport properties of thin flakes of the antiferromagnetic topological insulator MnBi2Te4
    Cui, Jianhua
    Shi, Mengzhu
    Wang, Honghui
    Yu, Fanghang
    Wu, Tao
    Luo, Xigang
    Ying, Jianjun
    Chen, Xianhui
    PHYSICAL REVIEW B, 2019, 99 (15)
  • [7] Picosecond Ultrasonics in Magnetic Topological Insulator MnBi2Te4
    Fonseca, Jordan
    Diederich, Geoffrey M.
    Ovchinnikov, Dmitry
    Yan, Jiaqiang
    Xiao, Di
    Xu, Xiaodong
    NANO LETTERS, 2024, 24 (34) : 10562 - 10568
  • [8] Growth and Characterization of MnBi2Te4 Magnetic Topological Insulator
    Saxena, A.
    Rani, P.
    Nagpal, V.
    Patnaik, S.
    Awana, V. P. S.
    3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER & APPLIED PHYSICS (ICC-2019), 2020, 2220
  • [9] Native defects in antiferromagnetic topological insulator MnBi2Te4
    Huang, Zengle
    Du, Mao-Hua
    Yan, Jiaqiang
    Wu, Weida
    PHYSICAL REVIEW MATERIALS, 2020, 4 (12)
  • [10] Intertwined Topological and Magnetic Orders in Atomically Thin Chern Insulator MnBi2Te4
    Xu, Xiaodong (xuxd@uw.edu); Cui, Yong-Tao (yongtao.cui@ucr.edu); Yan, Jiaqiang (yanj@ornl.gov); Chang, Cui-Zu (cxc955@psu.edu), 1600, American Chemical Society (21):