论文标题
Josephson连接中的非对称Fraunhofer图案来自异二维超级晶格V $ _5 $ S $ _8 $
Asymmetric Fraunhofer pattern in Josephson junctions from heterodimensional superlattice V$_5$S$_8$
论文作者
论文摘要
在约瑟夫森交界处（JJ）中引入旋转轨道耦合（SOC）会引起异常的约瑟夫森效应。我们根据新发现的异性超级晶格V $ _5 $ s $ _8 $调查JJS，并带有特殊的SOC形式。我们的JJS的独特同源表面可以消除因接口和混乱而引起的外部效应。我们观察到相对于垂直磁场和电流的非对称fraunhofer模式。不对称性受面内磁场的影响。分析模式指向Josephson电流的非平凡空间分布，该分布在V $ _5 $ S $ _8 $中是SOC的固有的。
Introduction of spin-orbit coupling (SOC) in a Josephson junction (JJ) gives rise to unusual Josephson effects. We investigate JJs based on a newly discovered heterodimensional superlattice V$_5$S$_8$ with a special form of SOC. The unique homointerface of our JJs enables elimination of extrinsic effects due to interfaces and disorder. We observe asymmetric Fraunhofer patterns with respect to both the perpendicular magnetic field and the current. The asymmetry is influenced by an in-plane magnetic field. Analysis of the pattern points to a nontrivial spatial distribution of the Josephson current that is intrinsic to the SOC in V$_5$S$_8$.
