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The Josephson Current in an s-Wave Superconductor/Noncentrosymmetric Superconductor Junction

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Advances in Computational Science and Computing (ISCSC 2018 2018)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 877))

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Abstract

We study theoretically the Josephson current in an s-wave superconductor/noncentrosymmetric superconductor (SWSC/NCSC) junction. Based on the Bogoliubov-de Gennes equation and the quantum scattering method, we show that the Josephson current periodicity is \(\varvec{\pi }\) not \(\varvec{2\pi }\) when the NCSC has only a pure p-wave component, whereas when both the s-wave and p-wave components are considered together in the NCSC, the Josephson current periodicity recovers to be the usual one \(\varvec{2\pi }\). It is also shown that the coupling strength of the junction as well as the Rashba spin-orbit coupling in the NCSC can significantly affect the periodicity of the Josephson current and its phase dependence. Our findings are useful to discern the order parameter symmetry in the NCSC.

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Acknowledgements

Supported by the Doctoral Scientific Research Startup Foundation of Jinling Institute of Technology (No. jit-b-201202) and Outstanding Young Backbone Teachers Program of Jinling Institute of Technology.

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Authors and Affiliations

  1. College of Science, Jinling Institute of Technology, Nanjing, 211169, China

    Zhuohui Yang

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  1. Zhuohui Yang
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Correspondence to Zhuohui Yang .

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Editors and Affiliations

  1. Division of Intelligent Future Technologies, Mälardalen University, Västerås, Sweden

    Ning Xiong

  2. School of Information Science and Technology, Hunan University, Changsha, Hunan, China

    Zheng Xiao

  3. School of Computer Science, Hunan Normal University, Changsha, Hunan, China

    Zhao Tong

  4. Hunan University of Chinese Medicine, School of Computer Science, Changsha, Hunan, China

    Jiayi Du

  5. School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore

    Lipo Wang

  6. Design and Physical Sciences Brunel, Electronic and Computer Engineering, College of Engineering, Uxbridge, Middlesex, UK

    Maozhen Li

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Yang, Z. (2019). The Josephson Current in an s-Wave Superconductor/Noncentrosymmetric Superconductor Junction. In: Xiong, N., Xiao, Z., Tong, Z., Du, J., Wang, L., Li, M. (eds) Advances in Computational Science and Computing. ISCSC 2018 2018. Advances in Intelligent Systems and Computing, vol 877. Springer, Cham. https://doi.org/10.1007/978-3-030-02116-0_38

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