Properties of superconductor/ferromagnet structures with spin-dependent scattering
Properties of superconductor/ferromagnet structures with spin-dependent scattering
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DOI：
10.1103/physrevb.73.064505
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发表时间：
2006-02-01
影响因子：
3.7
通讯作者：
Kupriyanov, MY
中科院分区：
文献类型：
--
作者：
Fauré, M;Buzdin, AI;Kupriyanov, MY
我们研究超导体/铁磁体（S/F）的混合结构的肮脏的限制，所描述的Usadel方程。更准确地说，临界温度和临界电流随铁磁层的厚度的振荡进行了研究。我们发现自旋翻转和自旋轨道散射导致衰变长度的减小和振荡周期的增加。临界电流衰减比临界温度衰减对这些对断裂机制更敏感。这两种散射机制应考虑到得到更好的实验结果和理论描述之间的协议。我们还研究了界面透明度对S/F结构性质的影响。
We investigate superconductor/ferromagnet (S/F) hybrid structures in the dirty limit, described by the Usadel equations. More precisely, the oscillations of the critical temperature and critical current with the thickness of the ferromagnetic layers are studied. We show that spin-flip and spin-orbit scattering lead to the decrease of the decay length and the increase of the oscillation period. The critical current decay is more sensitive to these pair-breaking mechanisms than that of the critical temperature. These two scattering mechanisms should be taken into account to get a better agreement between experimental results and theoretical descriptions. We also study the influence of the interface transparency on the properties of S/F structures.