| 在一个磁通量子内dc Josephson电流的阶梯效应(Ⅱ)——大尺寸Josephson结 |
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| 引用本文： | 张裕恒,沈秀玲,郑捷飞,吴彦,汪茂泉.在一个磁通量子内dc Josephson电流的阶梯效应(Ⅱ)——大尺寸Josephson结[J].物理学报,1984,33(8):1075-1083. |
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| 作者姓名： | 张裕恒 沈秀玲 郑捷飞 吴彦 汪茂泉 |
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| 作者单位： | (1)中国科学技术大学物理系; (2)中国科学技术大学物理系,82级研究生; (3)中国科学技术大学物理系,82届毕业生,现在美国UCBerkeley做研究生; (4)中国科学技术大学物理系,82届毕业生,现在中国科学院半导体研究所; (5)中国科学院等离子体物理研究所 |
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| 摘 要： | 大尺寸的Josephson结放置于Q值足够高的谐振腔中,当其Josephson频率ω=2cV0/h激励起腔的第r个本征模谐振时,这个振荡将反馈辐照结,必须考虑反馈场本征模的空间部分在结上是不同的。理论上得到了和文献2]不同的结果,给出了阶跃电流随磁场的变化,分析了腔的反馈场本征模和Josephson结的辐射电磁波空间匹配的条件,解释了为什么大尺寸的Josephson结不存在周期小于φ0的阶梯效应的物理原因。
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| 收稿时间： | 1983-07-21 |
THE STEP STRUCTURES EFFECT OF DC JOSEPHSON CURRENT WITHIN ONE FLUX QUANTUM PERIOD φ0(Ⅱ)—— JOSEPHSON JUNCTION WITH LARGER DIMENSIONS |
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| ZHANG YU-HENG,SHEN XIU-LING,ZHENG JIE-FEI,WU YAN and WANG MAO-QUAN.THE STEP STRUCTURES EFFECT OF DC JOSEPHSON CURRENT WITHIN ONE FLUX QUANTUM PERIOD φ0(Ⅱ)—— JOSEPHSON JUNCTION WITH LARGER DIMENSIONS[J].Acta Physica Sinica,1984,33(8):1075-1083. |
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| Authors: | ZHANG YU-HENG SHEN XIU-LING ZHENG JIE-FEI WU YAN and WANG MAO-QUAN |
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| Abstract: | We point out that by placing a large Josephson junction in high Q-value cavity whose rth eigen mode is excited by the Josephson frequency ω0=2cV0/h, the oscillating electromagnetic field will act on the juntion and one must recognize that the space part of the eigen mode of the field are not the same on the junction. We have obained theoretical result which is different from paper 2] and shows how the step structure current vary with the magnetic field. The match condition for eigen mode of the feedback field from the cavity and electromagnetic field radiated by Josephson junction has been worked out. Finally, the physical reason for the absence of step structure with period less than φ0 is given. |
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