在线形量子力学中,由于电子等微观粒子具有波粒二象性,当两块金属被一层厚度为几十至几百A的绝缘介质隔开时,电子等都可穿越势垒而运动。加电压后,可形成隧道电流,这种现象称为隧道效应。若把上述装置中的两块金属换成超导体后,当其介质层厚度减少到30A左右时,由超导电子对的长程相干效应也会产生隧道效应,称为约瑟夫逊效应
本文对液氮温区的大块体超导材料的约瑟夫逊效应进行了实验研究。
Experimental studies were made in Josephson effect of bulk superconductive materials at liquid nitrogen temperature.
实验结果与逆交流约瑟夫逊效应理论相符,并进一步支持了磁耦合的观点。
The experimental results are consistent with theoretical analysis on the inverse AC Joeephson effect, showing that the theory of the magnetic coupling is applicable to the inverse AC Josephson effect.
SQUID测量弱磁场的基本原理并指出了约瑟夫逊效应在精密测量方面的应用。
SQUID, and points out the application of Josephson effect to accurate measure.
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