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Condensed Matter > Mesoscale and Nanoscale Physics

arXiv:2501.04345 (cond-mat)
[Submitted on 8 Jan 2025]

Title:Anisotropy of PbTe nanowires with and without a superconductor

Authors:Zonglin Li, Wenyu Song, Shan Zhang, Yuhao Wang, Zhaoyu Wang, Zehao Yu, Ruidong Li, Zeyu Yan, Jiaye Xu, Yichun Gao, Shuai Yang, Lining Yang, Xiao Feng, Tiantian Wang, Yunyi Zang, Lin Li, Runan Shang, Qi-Kun Xue, Ke He, Hao Zhang
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Abstract:We investigate the anisotropic behaviors in PbTe and PbTe-Pb hybrid nanowires. In previous studies on PbTe, wire-to-wire variations in anisotropy indicate poor device control, posing a serious challenge for applications. Here, we achieve reproducible anisotropy in PbTe nanowires through a substantial reduction of disorder. We then couple PbTe to a superconductor Pb, and observe a pronounced deviation in the anisotropy behavior compared to bare PbTe nanowires. This deviation is gate-tunable and attributed to spin-orbit interaction and orbital effect, controlled by charge transfer between Pb and PbTe. These results provide a guidance for the controlled engineering of exotic quantum states in this hybrid material platform.
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Cite as: arXiv:2501.04345 [cond-mat.mes-hall]
  (or arXiv:2501.04345v1 [cond-mat.mes-hall] for this version)
  https://doi.org/10.48550/arXiv.2501.04345
Journal reference: Phys. Rev. B 111, 195416 (2025)
Related DOI: https://doi.org/10.1103/PhysRevB.111.195416

Submission history

From: Hao Zhang [view email]
[v1] Wed, 8 Jan 2025 08:41:01 UTC (18,991 KB)
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