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| 不对称s波超导体/绝缘层/s波超导体结的直流Josephson电流 | |
| 引用本文： | 李晓薇. 不对称s波超导体/绝缘层/s波超导体结的直流Josephson电流[J]. 淮阴师范学院学报(自然科学版), 2004, 3(2): 105-108 |
| 作者姓名： | 李晓薇 |
| 作者单位： | 淮阴师范学院,物理系,江苏,淮安,223001 |
| 摘 要： | 在不对称s波超导体/绝缘层/s波超导体Josephson结(s/I/s)中,考虑结界面粗糙散射情况下,运用Bogoliubov deGennes(BdG)方程和Furusaki Tsukada(FT)的电流公式计算准粒子的输运系数及s/I/s结的直流Josephson电流.研究表明,结界面的通常势垒和粗糙散射均抑制结中准粒子的Andreev反射,降低了流过s/I/s结的直流Josephson电流,直流Josephson电流I随温度T的变化关系与结两侧的对称性有关. |
| 关 键 词： | s/I/s结 直流Josephson电流 粗糙散射 |
| 文章编号： | 1671-6876(2004)02-0105-04 |
| 修稿时间： | 2004-01-01 |
The dc Josephson Current in the Unsymmetrical s-wave Superconductor/Insulator/s-wave Superconductor Junctions |
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| LI Xiao-wei. The dc Josephson Current in the Unsymmetrical s-wave Superconductor/Insulator/s-wave Superconductor Junctions[J]. Journal of Huaiyin Teachers College(Natrual Science Edition), 2004, 3(2): 105-108 | |
| Authors: | LI Xiao-wei |
| Abstract: | Taking into account rough interface scattering effects, within Bogoliubov-de Gennes equations and Furusaki-Tsukada formula for the Josephson current, we calculate the dc Josephson current in the unsymmetrical s-wave superconductor/insulator/s-wave superconductor junctions. It is found that dc Josephson currents are suppressed by rough interface scattering and the Josephson effect depends on strongly the symmetry of s/I/s junction. |
| Keywords: | s/I/s junction josephson current rough interface scattering |
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