Intrinsic Josephson effects in 60-K phase YBCO thin film mesas |
| |
| Authors: | Masayoshi Tonouchi Akihiko Itoh Takashi Yasuda Hisashi Shimakage Zhen Wang and Shuzo Takano |
| |
| Abstract: | We fabricatedc-axis oriented meas on YBa2Cu3O7−δ thin films. Columnar structures with an area of 20×20 μm2 and a depth of 0.1 μm were formed on oxygen deficient films with a critical temperature (T
c
) of 64 K or less. The devices showed hysteretic I–V curves without any branches. The dependence of the critical current density
on the temperature nearT
c
is explained by the Ambegaokar-Baratoff relation. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
