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Thickness dependence of superconductivity in layered GeP5

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摘要

探究材料维度与超导电性之间的物理关联已经引起了大量的研究兴趣。在本工作中，我们报告了利用维度实现对层状材料GeP5的超导电性的有效调制。随着GeP5的厚度从块体减薄到~96 nm时，其超导相变温度提高了~10%，表现出超导相变温度与厚度之间奇特的负相关特性。这种奇特的负相关特性被认为源于GeP5中各种量子序之间复杂的关联耦合作用，包括较薄的GeP5材料中被抑制的电荷密度波以及增强的电子-声子耦合作用等。我们研究成果为利用维度限域作用调制材料的超导电性提供了一个新的材料与物理基础。

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Nos. 11904001 and 11904004), the Joint Funds of the National Natural Science Foundation of China and the Chinese Academy of Sciences Large-Scale Scientific Facility (No. U1932156) and Anhui Innovation Project (No. 2021LCX007).

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Authors and Affiliations

  1. Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, China

    Lin Wu, Ke-Meng Yang, Wei Gan, Rui-Chun Xiao, Ya-Jie Dai, Xi Tang, Hong Lin, Hui Han & Hui Li

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Wu, L., Yang, KM., Gan, W. et al. Thickness dependence of superconductivity in layered GeP5. Rare Met. 43, 1323–1328 (2024). https://doi.org/10.1007/s12598-023-02526-3

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