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| f波超导体/绝缘层/f波超导体结中势垒散射对直流Josephson电流的影响 | |
| 引用本文： | 梁志鹏,董正超,廖艳华.f波超导体/绝缘层/f波超导体结中势垒散射对直流Josephson电流的影响[J].淮阴师范学院学报(自然科学版),2009,8(2):123-127. |
| 作者姓名： | 梁志鹏 董正超 廖艳华 |
| 作者单位： | 1. 苏州大学,物理科学与技术学院,江苏,苏州,215006;淮阴师范学院,物理系,江苏,淮安,223300 2. 淮阴师范学院,物理系,江苏,淮安,223300 3. 黄石理工学院,数理学院,湖北,黄石,435000 |
| 基金项目： | 江苏省高校自然科学基金资助项目 |
| 摘 要： | 通过计算界面势垒散射强度对直流Josephson电流的影响,研究了f波超导体/绝缘层/f波超导体结的直流Josephson电流与温度T和结两侧晶轴方位角之间的关系.我们发现:f波超导体/绝缘层/f波超导体结界面的势垒强度总是抑制结中准粒子的Andreev反射,降低流过f波超导体/绝缘层/f波超导体结的直流Josephson电流.当结两边晶轴方位角相同时,Josephson电流的振荡周期是2π;特别地,当结两边晶轴方位角不同时,其振荡周期不再是2π,而是会随着势垒强度的增大,振荡周期变小. |
| 关 键 词： | 超导体结 f波超导体 Josephson电流 |
Barrier Interface Scattering Effect on DC Josephson Current in f-Wave Superconductor/f-Wave Superconductor Junctions |
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| LIANG Zhi-peng,DONG Zheng-chao,LIAO Yan-hua.Barrier Interface Scattering Effect on DC Josephson Current in f-Wave Superconductor/f-Wave Superconductor Junctions[J].Journal of Huaiyin Teachers College(Natrual Science Edition),2009,8(2):123-127. | |
| Authors: | LIANG Zhi-peng DONG Zheng-chao LIAO Yan-hua |
| Institution: | 1.Department of Physics;Suzhou University;Suzhou Jiangsu 215006;China;2.Department of Physics;Huaiyin Teachers College;Huaian Jiangsu 223300;China;3.School of Mathematics and Physics;Huangshi Institute of Technology;Huangshi Hubei 435100;China |
| Abstract: | We study the temperature T and the phase of the Josephson critical current I(Φ) by taking into account the barrier interface scattering effect in a f-wave superconductor(S)/Insulator layer(I)/f-wave superconductor(S) junction.It is found that the Josephson critical currents in f-wave S/f-wave S,the barrier strength at inerface always suppress the Andreev reflection.Whenα=β,the phase dependence of the Josephson current I(Φ) between two f-wave S is predicted to be sinΦ;particularly,whenα≠β,the phase dependence of the Josephson current I(Φ) between two f-wave superconductors is not predicted to be sinΦ and with the barrier strength increasing,the period of the sinΦ turns decrease. |
| Keywords: | superconductor junction f-wave superconductor Josephson current |
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