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Shubnikov de Haas quantum oscillation of the surface states in the metallic Bismuth Telluride sheets

  • Taishi Chen
  • Junhao Han
  • Zhaoguo Li
  • Fengqi SongEmail author
  • Bo Zhao
  • Xuefeng Wang
  • Baigeng Wang
  • Jianguo Wan
  • Min Han
  • Rong Zhang
  • Guanghou Wang
Regular Article
Part of the following topical collections:
  1. Topical issue: ISSPIC 16 - 16th International Symposium on Small Particles and Inorganic Clusters

Abstract

Metallic Bi2Te3 crystalline sheets with the room-temperature resistivity of above 10 mΩ cm were prepared and their magnetoresistive transport was measured in a field of up to 9 T. The Shubnikov de Haas oscillations were identified from the secondly-derived magnetoresistance curves. While changing the angle between the field and normal axis of the sheets, we find that the oscillation periods present a cosine dependence on the angle. This indicates a two-dimensional transport due to the surface state. The work reveals a resolvable surface contribution to the overall conduction even in a metallic topological insulator.

Keywords

Surface State Carrier Density Landau Level Haas Oscillation Quantum Spin Hall 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Taishi Chen
    • 1
  • Junhao Han
    • 1
  • Zhaoguo Li
    • 1
  • Fengqi Song
    • 1
    Email author
  • Bo Zhao
    • 1
  • Xuefeng Wang
    • 1
  • Baigeng Wang
    • 1
  • Jianguo Wan
    • 1
  • Min Han
    • 1
  • Rong Zhang
    • 1
  • Guanghou Wang
    • 1
  1. 1.National Laboratory of Solid State Microstructures, Nanjing UniversityNanjingP.R. China

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