高温超伝導体ジョセフソン接合技術
高温超伝導体ジョセフソン接合の開発状況と課題
1996 年 31 巻 11 号 p. 572-577
詳細
1996 年 31 巻 11 号 p. 572-577
An overview of present Josephson junctions based on high-temperature superconductors (HTSs) is described. I indicate the importance of the critical current-normal resistance (IcRn) product, and show the experimentally-obtained values of the IcRn products for the HTS Josephson junctions reported so far. The junctions include grain boundary junctions, edge junctions, and sandwich junctions. Considering the charge transport mechanism across the junctions, effective ways to increase the IcRn product are proposed.
