Influence of a bulk superconducting environment on the superconductivity of one-dimensional zinc nanowires

Mingliang Tian, Nitesh Kumar, Jinguo Wang, Shengyong Xu, Moses Hung-Wai Chan

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

In an earlier paper, we reported an antiproximity effect (APE) in a system consisting of 40 nm diameter Zn nanowires (ZNWs) sandwiched between bulk Sn and In electrodes. When the electrodes are in the superconducting state, the superconductivity of the ZNWs is suppressed. When the electrodes are driven normal by a magnetic field, the superconductivity of the ZNWs recovers. In this paper we report systematic transport studies of this phenomenon with ZNWs sandwiched between Pb electrodes. The APE found in this system is subtle, showing up primarily in significantly reducing the critical current of the ZNWs when the Pb electrodes are in a superconducting state. The critical current is independent of the magnetic field until it is increased to a characteristic value Hd near 0.6 kOe when the critical current shows a rapid enhancement and reaches a maximum value at the critical field of Pb electrodes at 0.94 kOe.

Original languageEnglish (US)
Article number014515
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number1
DOIs
StatePublished - Aug 1 2006

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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