| 体超导铟对一维锌超导纳米线超导电性的抑制效应 |
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| 引用本文： | 田明亮,Nitesh Kumar,许胜勇,王金国,James Kurtz,陈鸿渭.体超导铟对一维锌超导纳米线超导电性的抑制效应[J].物理,2006,35(7):556-558. |
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| 作者姓名： | 田明亮 Nitesh Kumar 许胜勇 王金国 James Kurtz 陈鸿渭 |
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| 作者单位： | 美国宾夕法尼亚州立大学纳米尺度科学中心及物理系,宾夕法尼亚州,16802,美国 |
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| 基金项目： | 美国国家自然科学基金;美国宾夕法尼亚州立大学校科研和教改项目 |
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| 摘 要： | 文章细致研究了超导体铟／一维锌超导纳米线阵列／超导体铟夹心结构的超导电性．实验发现，当锌纳米线的长度在2—6μm、直径等于40nm时，宏观尺寸的超导体铟电极对中间的锌纳米线的超导电性具有反常的抑制作用,即当铟处在超导态时，中间的锌纳米线则停留在正常态．如果施加一个磁场，使超导体铟电极变为正常态，锌纳米线则恢复其超导电性，这种奇异的现象与超导电极材料的类型及锌纳米线的直径和长度有关。
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| 关 键 词： | 一维纳米线 超导电性 锌 |
| 收稿时间： | 2005-11-02 |
| 修稿时间： | 2005-11-022005-12-29 |
Suppression of superconductivity in zinc nanowires by bulk indium superconductors |
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| TIAN Ming-Liang,Nitesh Kumar,XU Sheng-Yong,WANG Jin-Guo,James Kurtz,Chan Moses.Suppression of superconductivity in zinc nanowires by bulk indium superconductors[J].Physics,2006,35(7):556-558. |
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| Authors: | TIAN Ming-Liang Nitesh Kumar XU Sheng-Yong WANG Jin-Guo James Kurtz Chan Moses |
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| Affiliation: | Center for Nanoscale Science and Department of Physics, Pennsylvania State University, University Park, PA 16802-6300, USA |
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| Abstract: | The transport properties were measured in a system consisting of a zinc nanowire array sandwiched between two bulk superconductors. It was found that the superconductivity of Zn nanowires of 40 nm diameter is suppressed either completely or partially by the bulk superconductors. When the latter are driven into their normal state by a magnetic field, the nanowires switch back to their superconducting state. This novel phenomenon is not seen in wires with diameters equal to or thicker than 70 nm. |
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| Keywords: | one-dimensional nanowires superconductivity Zn |
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