摘要
讨论了O-U噪声对约瑟夫逊结中伏安特性的影响,结果表明,当考虑热涨落效应时,伏安特性曲线出现“圆拱化”现象;随噪声关联时间增大,零压电流增大,当热涨落参量减小到一定值时,伏安特性曲线中的“圆拱化”现象消失。
The effect of O-U noise on volt-ampere properties in Josephson Junction is discussed. The result shows that when thermal fluctuation effect is considered, the curve of volt-ampere property is rounded, with the increase of noise correlation time, zero-voltage current increases, but when the thermal fluctuation parameter reduces to half of it. The rounding in volt-ampere curve vanishes.
出处
《江汉石油学院学报》
EI
CSCD
北大核心
2003年第3期156-157,共2页
Journal of Jianghan Petroleum Institute
基金
湖北省教育厅科研课题(2002038002)
关键词
约瑟夫逊结
热涨落效应
O-U噪声
伏安特性曲线
Josephson Junction
effect of thermal fluctuation
O-U noise
volt-ampere characteristic curve