Gate-tunable superconducting quantum interference devices of PbS nanowires

Hong-Seok Kim; Bum-Kyu Kim; Yiming Yang; Xingyue Peng; Soon-Gul Lee; Dong Yu; Yong-Joo Doh

doi:10.7567/APEX.9.023102

Gate-tunable superconducting quantum interference devices of PbS nanowires

Mesoscale and Nanoscale Physics 2016-01-08 v1 Superconductivity

Authors: Hong-Seok Kim , Bum-Kyu Kim , Yiming Yang , Xingyue Peng , Soon-Gul Lee , Dong Yu , Yong-Joo Doh

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Abstract

We report on the fabrication and electrical transport properties of gate-tunable superconducting quantum interference devices (SQUIDs), made of semiconducting PbS nanowire contacted with PbIn superconducting electrodes. Applied with a magnetic field perpendicular to the plane of the nano-hybrid SQUID, periodic oscillations of the critical current due to the flux quantization in SQUID are observed up to T = 4.0 K. Nonsinusoidal current-phase relationship is obtained as a function of temperature and gate voltage, which is consistent with a short and diffusive junction model.

Keywords

superconducting quantum interference device PbS nanowire gate-tunable critical current oscillation flux quantization current-phase relationship diffusive junction

Cite

@article{arxiv.1511.05079,
  title  = {Gate-tunable superconducting quantum interference devices of PbS nanowires},
  author = {Hong-Seok Kim and Bum-Kyu Kim and Yiming Yang and Xingyue Peng and Soon-Gul Lee and Dong Yu and Yong-Joo Doh},
  journal= {arXiv preprint arXiv:1511.05079},
  year   = {2016}
}

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14 pages, 4 figures

Gate-tunable superconducting quantum interference devices of PbS nanowires

Abstract

Keywords

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