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

Taishi Chen; Junhao Han; Zhaoguo Li; Fengqi Song; Bo Zhao; Xuefeng Wang; Baigeng Wang; Jianguo Wan; Min Han; Rong Zhang; Guanghou Wang

doi:10.1140/epjd/e2013-30536-5

2021 Impact factor 1.611

Atomic, Molecular, Optical and Plasma Physics

Topical issue: ISSPIC 16 - 16th International Symposium on Small Particles and Inorganic Clusters. Guest editors: Kristiaan Temst, Margriet J. Van Bael, Ewald Janssens, H.-G. Boyen and Françoise Remacle

Eur. Phys. J. D (2013) 67: 75
https://doi.org/10.1140/epjd/e2013-30536-5

Regular Article

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

Taishi Chen, Junhao Han, Zhaoguo Li, Fengqi Song^a, Bo Zhao, Xuefeng Wang, Baigeng Wang, Jianguo Wan, Min Han, Rong Zhang and Guanghou Wang

National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P.R. China

^a e-mail: songfengqi@nju.edu.cn

Received: 28 August 2012
Received in final form: 25 December 2012
Published online: 30 April 2013

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.

ISSPIC 16 – 16th International Symposium on Small Particles and Inorganic Clusters, edited by Kristiaan Temst, Margriet J. Van Bael, Ewald Janssens, H.-G. Boyen and Françoise Remacle.

© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2013