【摘要】 研究了10 V可编程约瑟夫森结阵的结构和低温超导特性，分析了10 V可编程结阵的激励算法和激励系统结构，提出了数字多用表的结阵超导特性扫描方法，与传统基于示波器的观测方法相比，大幅提升了结阵超导特性扫描和评估的准确性。实验结果表明，各子阵列的临界电流均大于4 mA，在注入微波后，各子阵列正向和负向量子电压台阶宽度均大于1.5 mA，设计和研制的10 V可编程结阵激励和超导特性扫描系统，能够较好地为10 V约瑟夫森结阵提供激励，为开展无液氦10 V量子电压系统的研究奠定了基础。更多还原

【Abstract】 The structure of a 10 V programmable Josephson junction array and its superconducting characteristics was researched in detail. The bias algorithm and the bias electronics of the 10 V programmable Josephson array were studied. A new I-V curve scanning method by using a digital voltmeter instead of the oscilloscope was proposed, which greatly improves the evaluation accuracy of the superconducting characteristics. The experimental results showed that the critical current of each subarray was greater than 4 mA, and the minimum quantum voltage step width of each subarray is 1.5 mA, which is important for the research of cryocooled 10 V quantum voltage system.更多还原