Strong enhancement of g-factor in PbTe-Pb hybrid nanowires
Shan Zhang, Wenyu Song, Zonglin Li, Zehao Yu, Ruidong Li, Yuhao Wang, Zeyu Yan, Jiaye Xu, Zhaoyu Wang, Yichun Gao, Shuai Yang, Lining Yang, Xiao Feng, Tiantian Wang, Yunyi Zang, Lin Li, Runan Shang, Qi-Kun Xue, Ke He, Hao Zhang
TL;DR
This paper reports a significant enhancement of the g-factor in PbTe-Pb hybrid nanowires, reaching values much higher than in bare PbTe, due to orbital effects in the superconducting film, which aids topological superconductivity research.
Contribution
It demonstrates a large g-factor in PbTe-Pb hybrid nanowires and attributes this to orbital effects, advancing understanding of magnetic properties in hybrid nanostructures.
Findings
g-factor reaches 83 in PbTe-Pb nanowires
Enhancement linked to orbital effects in superconducting film
Facilitates topological superconductivity experiments
Abstract
We report large Lande g-factors observed in PbTe-Pb hybrid nanowires. The g-factor can reach 83, significantly larger than those in bare PbTe nanowires (typically below 20). We attribute this enhancement to orbital effects in the superconducting film, particularly when the magnetic field is nearly perpendicular to the Pb film. This enhancement is beneficial for the search for topological superconductivity by reducing the critical magnetic field required for the phase transition.
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