Using an oxide superconductor that does not require cryogenic temperatures, a superconducting tunnel junction device is provided which can accurately control the magnitudes of critical current and step voltage necessary for electronics applications and which has good characteristics as designed. The intrinsic Josephson superconducting tunnel junction device includes an oxide superconductor defined by a general expression (I): Bi2−zPbzSr2Can(1−x)RnxCun+1O2n+6 (n≧1, 0x≦0.2, 0≦z≦1.0, R: rare-earth element).
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机译:使用不需要低温的氧化物超导体,提供了一种超导隧道结器件,该器件可以精确地控制电子应用所需的临界电流和阶跃电压的大小,并且具有设计好的特性。本征约瑟夫逊超导隧道结器件包括由以下通式(I)定义的氧化物超导体:Bi 2− z Sub> Pb z Sub> Sr 2 Sub> Ca n(1&min; x) Sub> R nx Sub> Cu n+ 1 Sub> O 2n+ 6 Sub>(n≧ 1,0 展开▼