论文标题
腔介导的超导体$ \ unicode {x2013} $铁磁绝缘子耦合
Cavity-mediated superconductor$\unicode{x2013}$ferromagnetic insulator coupling
论文作者
论文摘要
最近的概念证明表明，空腔光子可以在宏观距离上介导超导（SC）签名到铁磁绝缘子（FI）[Phys。 Rev. B，102，180506（R）（2020）]。与常规接近系统相反，这有助于长距离fi $ \ unicode {x2013} $ sc耦合，对不同驱动器和温度的局部征服以及对它们相互作用的研究而没有近端破坏其命令。在这里，我们得出了这些相互作用的微观理论，重点是对FI的主要影响，即诱导的各向异性领域。在一个任意的实际示例中，我们发现一个各向异性场$ 14 \ unicode {x2013} 16 $ $ $ $ $ t，预计该$ $ $ t将产生FI旋转的实验明显的倾斜，以用于低调FIS（例如Bi-yig）。我们讨论了这种系统在超导Spintronics的背景下的含义和潜在应用。
A recent proof of concept showed that cavity photons can mediate superconducting (SC) signatures to a ferromagnetic insulator (FI) over a macroscopic distance [Phys. Rev. B, 102, 180506(R) (2020)]. In contrast with conventional proximity systems, this facilitates long-distance FI$\unicode{x2013}$SC coupling, local subjection to different drives and temperatures, and studies of their mutual interactions without proximal disruption of their orders. Here we derive a microscopic theory for these interactions, with an emphasis on the leading effect on the FI, namely, an induced anisotropy field. In an arbitrary practical example, we find an anisotropy field of $14 \unicode{x2013} 16$ $μ$T, which is expected to yield an experimentally appreciable tilt of the FI spins for low-coercivity FIs such as Bi-YIG. We discuss the implications and potential applications of such a system in the context of superconducting spintronics.
