| 金属微粒对于隧道性质的影响 |
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| 引用本文： | 庞锦忠,龚昌德. 金属微粒对于隧道性质的影响[J]. 物理学报, 1985, 34(12): 1539-1548 |
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| 作者姓名： | 庞锦忠 龚昌德 |
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| 作者单位： | 南京大学物理系、固体物理研究所 |
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| 摘 要： | 本文利用泛函积分方法研究了超导金属微粒准粒子态密度的量子尺寸效应及随温度的变化。并研究了当超导微粒嵌入隧道结后对于Josephson效应的影响,发现在Josephson临界电流中出现反常现象。此外,我们还计算了准粒子隧道电流,结论与实验结果一致。关键词：
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| 收稿时间： | 1984-11-27 |
THE INFLUENCE OF SMALL METALLIC PARTICLE ON THE TUNNELLING PROPERTIES |
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| PANG JING-ZHONG and GONG CHANG-DE. THE INFLUENCE OF SMALL METALLIC PARTICLE ON THE TUNNELLING PROPERTIES[J]. Acta Physica Sinica, 1985, 34(12): 1539-1548 |
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| Authors: | PANG JING-ZHONG and GONG CHANG-DE |
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| Abstract: | The effect of size and temperature on the quasiparticle density of state in small superconductorsty have been calculated by using the functional integral method. The influence of small particles embeded in oxidic layer of tunnelling junction on the Jose-phson current have also been investigated. An anomaly exhibits in the supercurrent. In addition, the quasiparticle currents of the junction have been calculated, the results obtained are consistent with the experiments. |
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