Suppression of superconductivity in zinc nanowires by bulk superconductors

Mingliang Tian, Nitesh Kumar, Shengyong Xu, Jinguo Wang, James S. Kurtz, M. H.W. Chan

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Transport measurements were made on a system consisting of a zinc nanowire array sandwiched between two bulk superconducting electrodes (Sn or In). It was found that the superconductivity of Zn nanowires of 40 nm diameter is suppressed either completely or partially by the superconducting electrodes. When the electrodes are driven into their normal state by a magnetic field, the nanowires switch back to their superconducting state. This phenomenon is significantly weakened when one of the two superconducting electrodes is replaced by a normal metal. The phenomenon is not seen in wires with diameters equal to or thicker than 70 nm.

Original languageEnglish (US)
Article number076802
JournalPhysical review letters
Issue number7
StatePublished - Aug 12 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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