Giant Topological Nontrivial Band Gaps in Chloridized Gallium Bismuthide

被引:92
|
作者
Li, Linyang
Zhang, Xiaoming
Chen, Xin
Zhao, Mingwen [1 ]
机构
[1] Shandong Univ, Sch Phys, Jinan 250100, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
quantum spin Hall insulator; two-dimensional chloridized gallium bismuthide; gapless edge states; large band gap; band inversion; first-principles calculations; SPIN HALL INSULATOR; ELECTRON LOCALIZATION; PREDICTION; TRANSITION; ELEMENTS; STATES;
D O I
10.1021/nl504493d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Quantum spin Hall (QSH) effect is promising for achieving dissipationless transport devices but presently is achieved only at extremely low temperature. Searching for the large-gap QSH insulators with strong spinorbit coupling (SOC) is the key to increase the operating temperature. We demonstrate theoretically that this can be solved in the chloridized gallium bismuthide (GaBiCl2) monolayer, which has nontrivial gaps of 0.95 eV at the G point, and 0.65 eV for bulk, as well as gapless edge states in the nanoribbon structures. The nontrivial gaps due to the band inversion and SOC are robust against external strain. The realization of the GaBiCl2 monolayer will be beneficial for achieving QSH effect and related applications at high temperatures.
引用
收藏
页码:1296 / 1301
页数:6
相关论文
共 39 条
  • [1] Quasi-periodic scattering of topological edge states induced by the vacancies in chloridized gallium bismuthide nanoribbons
    Li, Hangyu
    Li, Zhongyao
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2023, 35 (25)
  • [2] Nontrivial topological states on a Mobius band
    Beugeling, W.
    Quelle, A.
    Smith, C. Morais
    PHYSICAL REVIEW B, 2014, 89 (23)
  • [3] Giant gaps in photonic band structures
    Dobrzynski, L
    Akjouj, A
    Djafari-Rouhani, B
    Vasseur, JO
    Zemmouri, J
    PHYSICAL REVIEW B, 1998, 57 (16): : R9388 - R9391
  • [4] Intertwined nontrivial band topology and giant Rashba spin splitting
    Mondal, Chiranjit
    Barman, Chanchal K.
    Alam, Aftab
    Pathak, Biswarup
    PHYSICAL REVIEW B, 2021, 104 (08)
  • [6] Topological photonic band gaps in honeycomb atomic arrays
    Wulles, Pierre
    Skipetrov, Sergey E.
    SCIPOST PHYSICS CORE, 2024, 7 (03):
  • [7] Signature of topological nontrivial band structure in Ta3SiTe6
    Roy, Shubhankar
    Singha, Ratnadwip
    Ghosh, Arup
    Mandal, Prabhat
    PHYSICAL REVIEW MATERIALS, 2021, 5 (06):
  • [8] Topological design of phononic crystals for multiple wide band gaps
    Li, Yan
    Luo, Yangjun
    Zhang, Xiaopeng
    JOURNAL OF SOUND AND VIBRATION, 2022, 529
  • [9] Design and Synthesis of a Single-Layer Ferromagnetic Metal- Organic Framework with Topological Nontrivial Gaps
    Gao, Zi'Ang
    Gao, Yifan
    Hua, Muqing
    Liu, Jing
    Huang, Li
    Lin, Nian
    JOURNAL OF PHYSICAL CHEMISTRY C, 2020, 124 (49): : 27017 - 27023
  • [10] MULTIPHOTON TRANSITIONS AT DIRECT AND INDIRECT BAND-GAPS OF GALLIUM-PHOSPHIDE
    CATALANO, IM
    CINGOLANI, A
    MINAFRA, A
    SOLID STATE COMMUNICATIONS, 1975, 16 (04) : 417 - 420