Experimental evidence on the Altshuler-Aronov-Spivak interference of the topological surface states in the exfoliated Bi2Te3 nanoflakes
Experimental evidence on the Altshuler-Aronov-Spivak interference of the topological surface states in the exfoliated Bi2Te3 nanoflakes
复制标题
剥离 Bi2Te3 纳米片拓扑表面态的 Altshuler-Aronov-Spivak 干涉的实验证据
DOI：
10.1063/1.3680099
复制
发表时间：
2012-02-20
影响因子：
4
通讯作者：
Wang, Guanghou
中科院分区：
文献类型：
--
作者：
Li, Zhaoguo;Qin, Yuyuan;Wang, Guanghou
在这里，我们证明了Altshuler-Aronov-Spivak（AAS）的拓扑表面状态的剥离Bi 2 Te 3微片上的磁通周期为h/2 e在其磁阻振荡和其弱场特性的干扰。观测到周期为h/e和h/2 e的振荡。随着样品宽度和温度的增加，h/2 e周期的AAS振荡逐渐占主导地位。这揭示了狄拉克费米子输运向扩散区的转变。
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.