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arXiv · 1012.0104

Experimental evidence on the Altshuler-Aronov-Spivak interference of the topological surface states in the exfoliated Bi2Te3 nanoflakes

Yuyuan Qin·Zhaoguo Li·Fengqi Song·Qianghua Wang·Wangfeng Ding·Xuefeng Wang·Haifeng Ding·Baigeng Wang·Chris Van Haesondonck·Jianguo Wan·Min Han·Y. H. Zhang·Guanghou Wang
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Abstract

Here we demonstrate the Altshuler-Aronov-Spivak (AAS) interference of the topological surface states on the exfoliated Bi2Te3 microflakes by a flux period of h/2e in their magnetoresistance oscillations and its weak field character. Both the osillations with the period of h/e and h/2e are observed. The h/2e-period AAS oscillation gradually dominates with increasing the sample widths and the temperatures. This reveals the transition of the Dirac Fermions' transport to the diffusive regime.

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Yuyuan Qin, Zhaoguo Li, Fengqi Song, Qianghua Wang, Wangfeng Ding, Xuefeng Wang, Haifeng Ding, Baigeng Wang, Chris Van Haesondonck, Jianguo Wan, Min Han, Y. H. Zhang, Guanghou Wang. 2010-12-01. Experimental evidence on the Altshuler-Aronov-Spivak interference of the topological surface states in the exfoliated Bi2Te3 nanoflakes. https://doi.org/10.1063/1.3680099

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