π-junction realization due to tunneling through a thin ferromagnetic layer

π-junction realization due to tunneling through a thin ferromagnetic layer
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由于隧道穿过薄铁磁层而实现 π 结

DOI:
10.1134/1.1641489
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发表时间:
2003
期刊:
Journal of Experimental and Theoretical Physics Letters
影响因子:
--
通讯作者:
A. Buzdin
A. Buzdin
中科院分区:
--
文献类型:
--
作者:
A. Buzdin

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结果表明,在超导体-铁磁体-超导体(S/F/S)系统中,在低界面透明度的情况下,向π相的转变与F层超导序参量的振荡无关。因此,π相可以在非常薄的F层厚度下存在。从π相到0相的交叉导致临界电流的非单调温度依赖性。
It is demonstrated that in superconductor-ferromagnet-superconductor (S/F/S) systems in the case of low interface transparency the transition into π-phase is not related with the oscillations of the superconducting order parameter in F-layer. Consequently, the π-phase may exist at very thin F-layer thickness. The crossover from π-to 0-phase results in the nonmonotonous temperature dependence of the critical current.