Suppression of superconductivity in zinc nanowires by bulk superconductors

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

doi:10.1103/PhysRevLett.95.076802

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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Abstract

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 language	English (US)
Article number	076802
Journal	Physical review letters
Volume	95
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.95.076802
State	Published - Aug 12 2005

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.95.076802

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abstract = "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.",

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AU - Kumar, Nitesh

AU - Xu, Shengyong

AU - Wang, Jinguo

AU - Kurtz, James S.

AU - Chan, M. H.W.

PY - 2005/8/12

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AB - 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.

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Suppression of superconductivity in zinc nanowires by bulk superconductors

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