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arXiv 1811.02484cond-mat.supr-con
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量化约瑟夫森相位电池

Quantized Josephson phase battery

Subhajit Pal, Colin Benjamin

摘要:

具有夹在其间的自旋翻转器(磁性杂质)的铁磁约瑟夫森结充当相位电池,其可以存储结的基态中的超导相位差$Φ_0$的量化量。此外,对于这种$Φ_0$ -约瑟夫森结,反常约瑟夫森电流出现在零相位差。我们研究了这种量子自旋翻转散射诱导的反常约瑟夫森电流的性质,特别是它通过两个铁磁体之间的取向差角的可调谐性。

英文摘要:

A ferromagnetic Josephson junction with a spin-flipper (magnetic impurity) sandwiched in-between acts as a phase battery that can store quantized amounts of superconducting phase difference $Φ_0$ in the ground state of the junction. Moreover, for such $Φ_0$-Josephson junction anomalous Josephson current appears at zero phase difference. We study the properties of this quantum spin-flip scattering induced anomalous Josephson current, especially its tun-ability via misorientation angle between two Ferromagnets.

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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