Anomalous Aharonov-Bohm Oscillations in Bi$_{2}$Te$_{3}$ Nanotubes with disorders

POSTER

Abstract

Topological insulator Bi$_{2}$Te$_{3}$ nanotubes have been synthesized and their magnetotransport properties have been studied on single nanotubes. The conductance of the nanotube can be characterized by Mott's variable range hopping model in a wide temperature range, indicating the system is in a strong disorder regime. Magnetoresistance oscillations with h/e period from the nanotube outer surface were observed, suggesting the presence of surface states due to anomalous Aharonov-Bohm effect. The results show for the first time that the topological surface states are robust against strong disorders.

Authors

  • Renzhong Du

    • Department of Physics, The Pennsylvania State University

  • Yuewei Yin

    • Department of Physics, The Pennsylvania State University

  • Sining Dong

    • Hefei National Laboratory for Physical Sciences at Microscale, Department of Physics, University of Science and Technology of China

  • Wenqing Dai

    • Department of Physics, The Pennsylvania State University

  • Weiwei Zhao

    • Department of Physics, The Pennsylvania State University

  • DukSoo Kim

    • Department of Electrical Engineering, The Pennsylvania State University

  • Shih-Ying Yu

    • Department of Materials Science and Engineering, the Pennsylvania State University

  • Jian Wang

    • International Center for Quantum Materials, Peking University

  • Xiaoguang Li

    • Hefei National Laboratory for Physical Sciences at Microscale, Department of Physics, University of Science and Technology of China

  • Suzanne Mohney

    • Department of Materials Science and Engineering, the Pennsylvania State University

  • Srinivas Tadigadapa

    • Department of Electrical Engineering, The Pennsylvania State University

  • Nitin Samarth

    • Department of Physics, The Pennsylvania State University

  • Chaoxing Liu

    • Department of Physics, The Pennsylvania State University

  • Jainendra Jain

    • Department of Physics, The Pennsylvania State University

  • Moses Chan

    • Department of Physics, The Pennsylvania State University

  • Qi Li

    • Department of Physics, The Pennsylvania State University