Ferromagnetism in Fe-doped Bi2Se3 topological insulators with Se vacancies

被引：15
|
作者：
Wei, X. Y. [1 ,2 ,3 ]
Zhang, J. Y. [1 ,2 ,3 ]
Zhao, B. [1 ,2 ,3 ]
Zhu, Y. [4 ]
Yang, Z. Q. [1 ,2 ,3 ]
机构：
[1] Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China
[2] Fudan Univ, Key Lab Computat Phys Sci MOE, Shanghai 200433, Peoples R China
[3] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[4] Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing 211100, Jiangsu, Peoples R China
来源：
PHYSICS LETTERS A | 2015年 / 379卷 / 05期
基金：
中国国家自然科学基金; 上海市自然科学基金;
关键词：
BAND-GAP;
D O I：
10.1016/j.physleta.2014.11.032
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Effects of Se vacancies (vSes) on structural and magnetic properties of Fe-doped Bi2Se3 topological insulators are investigated with density-functional theory. It is found both the Fe-Fe dopants and Fe-vSe tend to form clusters. An antiferromagnetic (AFM) to ferromagnetic (FM) phase transition occurs when two Se vacancies are nearby the Fe-Fe dopants, triggered by Fe-Fe direct interactions and carrier-mediated FM interactions. Our results provide an understanding of magnetism in the magnetic topological insulators with Se vacancies. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：417 / 420
页数：4
相关论文
共 50 条
  • [31] Anti-ferromagnetism Through Mn Doping In Topological Insulator Bi2Se3
    Maurya, V. K.
    Yadav, P. K.
    Patnaik, S.
    PROCEEDINGS OF THE 59TH DAE SOLID STATE PHYSICS SYMPOSIUM 2014 (SOLID STATE PHYSICS), 2015, 1665
  • [32] Spin texture and magnetic anisotropy of Co impurities in Bi2Se3 topological insulators
    Schmidt, Tome M.
    Miwa, R. H.
    Fazzio, A.
    PHYSICAL REVIEW B, 2011, 84 (24)
  • [33] Anomalous Dressing of Dirac Fermions in the Topological Surface State of Bi2Se3, Bi2Te3, and Cu-Doped Bi2Se3
    Kondo, Takeshi
    Nakashima, Y.
    Ota, Y.
    Ishida, Y.
    Malaeb, W.
    Okazaki, K.
    Shin, S.
    Kriener, M.
    Sasaki, Satoshi
    Segawa, Kouji
    Ando, Yoichi
    PHYSICAL REVIEW LETTERS, 2013, 110 (21)
  • [34] Responses of the topological surface states to Mn-covered on topological insulators Bi2Se3 film
    Zhao, Xu
    Dai, Xianqi
    Zhao, Bao
    Li, Wei
    SOLID STATE COMMUNICATIONS, 2015, 203 : 46 - 50
  • [35] Properties of Bi2Se3 single crystals doped with Fe atoms
    Lostak, P
    Drasar, C
    Klichova, I
    Navratil, J
    Cernohorsky, T
    PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1997, 200 (01): : 289 - 296
  • [36] Observation of nano-scaled defects in Fe doped Bi2Se3 topological insulator crystal
    Lv, Li
    Zhou, Dajin
    Zhang, Min
    Yang, Liqin
    Yang, Xinsheng
    Zhao, Yong
    MATERIALS LETTERS, 2013, 99 : 118 - 121
  • [37] Twin Domain Structure in Magnetically Doped Bi2Se3 Topological Insulator
    Sebesta, Jakub
    Carva, Karel
    Kriegner, Dominik
    Honolka, Jan
    NANOMATERIALS, 2020, 10 (10) : 1 - 18
  • [38] Theoretical and experimental investigations on Mn doped Bi2Se3 topological insulator
    Kumar, Ravi
    Banik, Soma
    Sen, Shashwati
    Jha, Shambhu Nath
    Bhattacharyya, Dibyendu
    PHYSICAL REVIEW MATERIALS, 2022, 6 (11)
  • [39] Magnetic Properties of Iron-Doped Bi2Se3, a Topological Insulator
    E. V. Shevchenko
    A. Sh. Khachatryan
    A. O. Antonenko
    E. V. Charnaya
    S. V. Naumov
    V. V. Marchenkov
    V. V. Chistyakov
    M. K. Lee
    L.-J. Chang
    Physics of the Solid State, 2019, 61 : 1037 - 1042
  • [40] Nematic topological superconducting phase in Nb-doped Bi2Se3
    Junying Shen
    Wen-Yu He
    Noah Fan Qi Yuan
    Zengle Huang
    Chang-woo Cho
    Seng Huat Lee
    Yew San Hor
    Kam Tuen Law
    Rolf Lortz
    npj Quantum Materials, 2
12345