中国物理B ›› 2023, Vol. 32 ›› Issue (5): 56801-056801.doi: 10.1088/1674-1056/aca203

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Quasi-one-dimensional characters in topological semimetal TaNiTe5

Ni Ma(马妮)1,2,†, De-Yang Wang(王德阳)1,2,†, Ben-Rui Huang(黄本锐)1,2, Kai-Yi Li(李凯仪)3, Jing-Peng Song(宋靖鹏)1,2, Jian-Zhong Liu(刘建忠)1,2, Hong-Ping Mei(梅红萍)1, Mao Ye(叶茂)1,2, and Ang Li(李昂)1,‡   

  1. 1 State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
  • 收稿日期:2022-09-01 修回日期:2022-10-30 接受日期:2022-11-11 出版日期:2023-04-21 发布日期:2023-05-05
  • 通讯作者: Ang Li E-mail:angli@mail.sim.ac.cn
  • 基金资助:
    Project supported by the National Key R&D Program of China (Grant No. 2017YFA0305400) and the National Natural Science Foundation of China (Grant No. 11227902).

Quasi-one-dimensional characters in topological semimetal TaNiTe5

Ni Ma(马妮)1,2,†, De-Yang Wang(王德阳)1,2,†, Ben-Rui Huang(黄本锐)1,2, Kai-Yi Li(李凯仪)3, Jing-Peng Song(宋靖鹏)1,2, Jian-Zhong Liu(刘建忠)1,2, Hong-Ping Mei(梅红萍)1, Mao Ye(叶茂)1,2, and Ang Li(李昂)1,‡   

  1. 1 State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
  • Received:2022-09-01 Revised:2022-10-30 Accepted:2022-11-11 Online:2023-04-21 Published:2023-05-05
  • Contact: Ang Li E-mail:angli@mail.sim.ac.cn
  • Supported by:
    Project supported by the National Key R&D Program of China (Grant No. 2017YFA0305400) and the National Natural Science Foundation of China (Grant No. 11227902).

摘要: One-dimensional (1D) topological insulators are superior for low-dissipation applications owing to the 1D character of surface states where scatterings other than prohibited backscattering are further restricted. Among the proposed candidates for 1D topological materials, TaNiTe5 has attracted intensive attention for its quasi-one-dimensional (quasi-1D) crystalline structure. In this study, we identify the chain-like construction and anisotropic electronic states on TaNiTe5 surface with scanning tunneling microscopy. The electron scatterings are largely suppressed even with chromium impurities deposited on the surface and magnetic field applied normal to the surface, which endows TaNiTe5 great potential for low-dissipation spintronic applications.

关键词: quasi-one-dimensional, magnetic impurity, scanning tunneling microscopy

Abstract: One-dimensional (1D) topological insulators are superior for low-dissipation applications owing to the 1D character of surface states where scatterings other than prohibited backscattering are further restricted. Among the proposed candidates for 1D topological materials, TaNiTe5 has attracted intensive attention for its quasi-one-dimensional (quasi-1D) crystalline structure. In this study, we identify the chain-like construction and anisotropic electronic states on TaNiTe5 surface with scanning tunneling microscopy. The electron scatterings are largely suppressed even with chromium impurities deposited on the surface and magnetic field applied normal to the surface, which endows TaNiTe5 great potential for low-dissipation spintronic applications.

Key words: quasi-one-dimensional, magnetic impurity, scanning tunneling microscopy

中图分类号:  (Chemisorption/physisorption: adsorbates on surfaces)

  • 68.43.-h
75.30.Hx (Magnetic impurity interactions) 68.37.Ef (Scanning tunneling microscopy (including chemistry induced with STM))