Properties of tunnel Josephson junctions with a ferromagnetic interlayer

Properties of tunnel Josephson junctions with a ferromagnetic interlayer
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具有铁磁夹层的隧道约瑟夫森结的特性

DOI:
10.1103/physrevb.77.134507
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发表时间:
2007
期刊:
影响因子:
3.7
通讯作者:
M. Weides
M. Weides
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
A. Vasenko;A. Vasenko;A. Golubov;M. Kupriyanov;M. Weides

文献摘要

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本文用准经典理论研究了脏极限下的超导体/绝缘体/铁磁体/超导体隧道约瑟夫森结。我们制定了一个定量模型描述的临界电流的振荡作为铁磁层的厚度的函数,并使用该模型来拟合最近的实验数据。我们还定量地计算了这种结的态密度DOS,并与临界电流的振荡进行了比较
We investigate superconductor/insulator/ferromagnet/superconductor tunnel Josephson junctions in the dirty limit using the quasiclassical theory. We formulate a quantitative model describing the oscillations of critical current as a function of thickness of the ferromagnetic layer and use this model to fit recent experimental data. We also calculate quantitatively the density of states DOS in this type of junctions and compare DOS oscillations with those of the critical current