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arXiv 1910.04419cond-mat.supr-con
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$φ_0$约瑟夫森结中磁化反转的分析判据

Analytical criteria for magnetization reversal in $φ_0$ Josephson junction

A. A. Mazanik, I. R. Rahmonov, A. E. Botha, Yu. M. Shukrinov

摘要:

研究了由普通超导体和磁性非中心对称中间层形成的$φ_0$约瑟夫森结。我们推导出一个解析解的磁化动力学诱导的任意电流脉冲,并制定磁化反转的标准。利用所得到的结果,电流脉冲的形式和持续时间进行了优化。分析和数值研究之间的协议达成的情况下,一个大的产品的约瑟夫森比的磁能,自旋轨道相互作用的强度和电流脉冲的最小值。所获得的结果允许一个预测在选定的系统参数的磁化反转。

英文摘要:

The $φ_0$ Josephson junctions formed by ordinary superconductors and a magnetic non-centrosymmetric interlayer are studied. We derive an analytical solution for the magnetization dynamics induced by an arbitrary current pulse and formulate the criteria for magnetization reversal. Using the obtained results, the form and duration of the current pulse are optimized. The agreement between analytical and numerical investigations is reached in the case of a large product of the ratio Josephson to magnetic energy, strength of spin-orbit interaction and a minimal value of the current pulse. The obtained results allow one to predict magnetization reversal at the chosen system parameters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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