AI 中文总结
研究弯曲磁性薄膜约瑟夫森结中电流相关问题,提出广义格林函数方法计算扩散输运,展示了曲率和距离对超导配对转换及电流密度分布的影响,包括电流密度操纵、涡电流和电流反转等。
AI 中文摘要
磁性薄膜中的实空间几何曲率通过邻近效应引入了一种用于定制超导稳态约瑟夫森电流路径的可控机制。我们提出了一种广义格林函数方法来计算任意弯曲表面中的扩散输运,并展示了曲率和距离的竞争机制如何调节邻近耦合铁磁体中不同超导配对之间的转换。我们展示了这如何决定电流密度的分布,以及曲率控制电流密度操纵、感应涡电流和电流反转的可能性。
英文摘要
Real-space geometric curvature in magnetic thin films introduces a controllable mechanism for tailoring the pathways of superconducting steady-state Josephson currents via the proximity effect. We present a generalized Green's function method for calculating diffusive transport in arbitrarily curved surfaces, and show how the competing mechanisms of curvature and distance regulate conversion between different superconducting pairings in a proximity-coupled ferromagnet. We show how this dictates the distribution of current density, with the possibility of curvature-controlled current density manipulation, induced eddy currents and current reversal.
Comments8 pages, 4 figures