论文标题
由于纳米管的手性结构，超电流二极管效应和非偏射副导率
The supercurrent diode effect and nonreciprocal paraconductivity due to the chiral structure of nanotubes
论文作者
论文摘要
对超电流二极管效应（SDE）的研究兴趣一直在增长。它已经在各种系统中发现，在很大一部分可以通过结合旋转轨道耦合和Zeeman场来理解它。在这里，我们表明，在手性纳米管中产生SDE的另一种机制，该纳米管捕获了磁通量，而无需自旋轨道耦合或Zeeman场。我们进一步表明，相同的普遍的金茨堡 - 兰道理论会导致过渡温度附近的非脑副副传统（NPC）。 SDE和NPC的主要特征通过其参数依赖性揭示。我们的研究提出了一种新的平台，以探索超导材料的非偏置特性。它还提供了SDE和NPC之间的理论联系，经常进行分别研究。
The research interest in the supercurrent diode effect (SDE) has been growing. It has been found in various kinds of systems, in a large part of which it may be understood by combining spin-orbit coupling and Zeeman field. Here, we show that there exists another mechanism of generating SDE in chiral nanotubes that trap magnetic fluxes, without spin-orbit coupling or Zeeman field. We further show that the same generalized Ginzburg-Landau theory leads to nonreciprocal paraconductivity (NPC) near the transition temperature. The main features of both the SDE and the NPC are revealed by their parameter dependence. Our study suggests a new kind of platforms to explore nonreciprocal properties of superconducting materials. It also provides a theoretical link between the SDE and the NPC, which were often studied separately.
