The development of superconductor/insulator/superconductor（SIS）tunnel junctions inthe cuprate high-temperature superconductor family has been hampered by an anisotropicstructure and a coherence length ξ as short as...The development of superconductor/insulator/superconductor（SIS）tunnel junctions inthe cuprate high-temperature superconductor family has been hampered by an anisotropicstructure and a coherence length ξ as short as 0.3 nm. However, the discovery of Ba<sub>1-x</sub>K<sub>x</sub>-BiO<sub>3</sub>（x≈0.4） superconductor which is an isotropic cubic structure and has a展开更多
基金Project supported by the National Center for Research and Development on Superconducting, the National Natural Science Foundation of China and the National Laboratory of Solid State Microstructure in Nanjing University.
文摘The development of superconductor/insulator/superconductor（SIS）tunnel junctions inthe cuprate high-temperature superconductor family has been hampered by an anisotropicstructure and a coherence length ξ as short as 0.3 nm. However, the discovery of Ba<sub>1-x</sub>K<sub>x</sub>-BiO<sub>3</sub>（x≈0.4） superconductor which is an isotropic cubic structure and has a
