论文标题
超导体 - ferromagnet-supconductor josephson连接中的交替电场引起的动态自旋三序序
Dynamic spin-triplet order induced by alternating electric fields in superconductor-ferromagnet-superconductor Josephson junctions
论文作者
论文摘要
动态状态提供了控制量子物质属性的扩展可能性。最近的努力集中在研究仅在时间依赖性驱动器下出现的有序状态。在这里，我们演示了一类系统，这些系统具有由交替的电场刺激的动态自旋三个超导顺序。该效果基于铁磁性，界面自旋轨道耦合（SOC）的相互作用和由田间驱动的凝聚力运动，该田间将隐藏的静态P波阶转换为铁磁性和SOC的联合作用，将其转换为动态S-Wave Spin Equalsepin Equalseplet相关性。我们证明，托管这些状态的约瑟夫森连接的临界电流与外部照射或交流电流源提供的电磁功率成正比。基于这些不寻常的特性，我们提出了约瑟夫森晶体管的方案，该方案可以通过交流电压切换，并演示偶数偶数的shapiro步骤序列。将光活动的约瑟夫森连接与最近发现的约瑟夫森相电池相结合，我们找到了照片磁鱿鱼设备，这些设备可以在暴露于辐照的同时产生自发的磁场。
Dynamic states offer extended possibilities to control the properties of quantum matter. Recent efforts are focused on studying the ordered states which appear exclusively under the time-dependent drives. Here we demonstrate a class of systems which feature dynamic spin-triplet superconducting order stimulated by the alternating electric field. The effect is based on the interplay of ferromagnetism, interfacial spin-orbital coupling (SOC) and the condensate motion driven by the field, which converts hidden static p-wave order, produced by the joint action of the ferromagnetism and the SOC, into dynamical s-wave equal-spin triplet correlations. We demonstrate that the critical current of Josephson junctions hosting these states is proportional to the electromagnetic power, supplied either by the external irradiation or by the ac current source. Based on these unusual properties we propose the scheme of a Josephson transistor which can be switched by the ac voltage and demonstrates an even-numbered sequence of Shapiro steps. Combining the photo-active Josephson junctions with recently discovered Josephson phase batteries we find photo-magnetic SQUID devices which can generate spontaneous magnetic fields while being exposed to irradiation.
