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(Ⅰ)器件(理论、制备和性能测试)超导弱连接中的 Josephson 电流在一个磁通量子内的振荡(Ⅰ)张裕恒 陈赓华中国科技大学物理系本文指出,如果 Josephson 结处在 Q 值足够高的谐振腔内,当 Josephson 频率ω=2eVo/h 与谐振腔的本征频率ωr 或其 n 次倍频 nωr 发生谐振时,振荡的电磁场对 Josephson 结本身的反馈作用将导致超流电流在一个磁通量子内随磁场的小周期振荡。关于临界电流被周期性调制的约瑟夫逊结
(Ⅰ) Oscillation of Josephson current in a flux linkage in a superconducting weak connection (Ⅰ) Zhang Yuheng Chen Yuhua Department of Physics, University of Science and Technology of China This paper points out that if the Josephson junction has enough Q When the Josephson frequency ω = 2eVo / h resonates with the eigenfrequency ωr of the resonator or its n times multiplier nωr, the feedback effect of the oscillating electromagnetic field on the Josephson junction itself will result in a superfluous current flowing in one Magnetic flux within the small magnetic field oscillation cycle. The Josephson junction is periodically modulated by the critical current