标题： 超导薄膜异质结构中涡旋诱导整流效应的尺度关系 显示英文标题

标题： A scaling relation of vortex-induced rectification effects in a superconducting thin-film heterostructure

摘要： 超电流整流，即对偏置和磁场极性敏感的超导性质的非互易响应，因其作为理想二极管的特性而引起了越来越多的兴趣。 尽管超导整流效应是由于不对称的磁通钉扎引起的，但发展其不对称势能的机制一直是一个持续争论的话题，主要集中在空间反演对称性的微观破坏和样品结构的宏观不平衡上。 在这里，我们报告了在超导Fe(Se,Te)/FeTe异质结构中对超导二极管效应和非互易电阻的比较研究。 在正常状态下，我们观察到有限的非互易电阻，这是具有结构反演不对称性的自旋轨道相互作用的标志。 在超导状态下，我们发现过渡区中增强的非互易系数通过一个普适的标度定律直接与超导二极管效率耦合，表明自旋动量锁定态在不对称钉扎势中的作用。 我们的发现为超导整流提供了一个统一的图景，为功能化超导二极管器件铺平了道路。 显示英文摘要

摘要： Supercurrent rectification, nonreciprocal response of superconducting properties sensitive to the polarity of bias and magnetic field, has attracted growing interest as an ideal diode. While the superconducting rectification effect is a consequence of the asymmetric vortex pinning, the mechanisms to develop its asymmetric potentials have been a subject of ongoing debate, mainly focusing on microscopic breaking of spatial inversion symmetry and macroscopic imbalance of the sample structure. Here, we report on comparative study of the superconducting diode effect and nonreciprocal resistance in a superconducting Fe(Se,Te)/FeTe heterostructure. In normal state, we observe finite nonreciprocal resistance as a hallmark of the spin-orbit interaction with structural inversion asymmetry. In the superconducting state, we find that the strongly enhanced nonreciprocal coefficient in transition regime is directly coupled to the superconducting diode efficiency through a universal scaling law, indicating the role of spin-momentum-locked state on the asymmetric pinning potential. Our findings, providing a unified picture of the superconducting rectification, pave the way for functionalizing superconducting diode devices.