\begin{document}${n_{\rm{s}}} = 1.25 \times {10^{16}}\;{{\rm{m}}^{ - 2}}$\end{document}. Subsequently, we scan the voltage from 200 V to –200 V continuously in different magnetic fields. Two phenomena with different characteristics are observed. It is found that the resistance changes linearly with stress at zero field while an SdH oscillation-like behavior occurs at high field. We attribute such a difference to the existence of two conductive channels: one is the bulk material and the other is the two-dimensional electron gas. It is also noteworthy that the topological phase in our sample cannot be determined because the quantum Hall conductance is polluted by the conductance of bulk material. In conclusion, our results show that it is an effective way to use the PZT to tune the stress and this method can also be applied to the research of other materials."> - 必威体育下载

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Zhang Song-Ran, He Dai-Hua, Tu Hua-Yao, Sun yan, Kang Ting-Ting, Dai Ning, Chu Jun-Hao, Yu Guo-Lin
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  • Abstract views:8720
  • PDF Downloads:220
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Publishing process
  • Received Date:02 September 2019
  • Accepted Date:12 December 2019
  • Published Online:05 March 2020

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