通过计算具有铁磁绝缘层的双层,波超导体结中铁磁绝缘层的磁散射对直流Josephson电流的影响,研究了f波超导体(fS)/铁磁绝缘层(FI)/f波超导体(fS)结的直流Josephson电流与温度和结两侧相位差(ψ)之间的关系.研究表明:fS/FI/fS结界面的粗糙散射和磁散射总是抑制结中准粒子的Andreev反射,降低流过fS/FI/fS结的直流Josephson电流,且结的直流Josephson电流随相位差的变化曲线强烈依赖于f波超导体的晶轴方位角(α).
参考文献
| [1] | Mackenzie AP.;Maeno Y. .The superconductivity of Sr2RuO4 and the physics of spin-triplet pairing [Review][J].Reviews of Modern Physics,2003(2):657-712. |
| [2] | Tanaka A.;Hu X. .Possible spin triplet superconductivity in NaxCoO2 center dot yH(2)O - art. no. 257006[J].Physical review letters,2003(25):7006-0. |
| [3] | Kato M;Michioka C;Waki T;Itoh Y;Yoshimura K;Ishida K;Sakurai H;Takayama-Muromachi E;Takada K;Sasaki T .Possible spin triplet superconductivity in NaxCoO2 center dot yH2O-Co-59 NMR studies[J].Journal of Physics. Condensed Matter,2006(2):669-682. |
| [4] | Miyake K.;Narikiyo O. .Model for unconventional superconductivity of Sr2RuO4: Effect of impurity scattering on time-reversal breaking triplet pairing with a tiny gap[J].Physical review letters,1999(7):1423-1426. |
| [5] | Graf MJ.;Balatsky AV. .Identifying the pairing symmetry in the Sr2RuO4 superconductor[J].Physical Review.B.Condensed Matter,2000(14):9697-9702. |
| [6] | Kato, M;Suematsu, H;Maki, K .Self-consistent solution of a single vortex in f-wave superconductors[J].The journal of physics and chemistry of solids,2005(8/9):1409-1411. |
| [7] | 董正超.铁磁-d波超导结中的粗糙界面散射和自旋反转效应对隧道谱的影响[J].物理学报,2001(09):1779-1782. |
| [8] | 董正超.磁性半导体/磁性d波超导结中的自旋极化输运[J].物理学报,2008(09):5937-5943. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%