发表机构
Institute of Science and Technology Austria (ISTA); Niels Bohr Institute, University of Copenhagen; Department of Physics, Norwegian University of Science and Technology（奥地利科学技术研究所; 哥本哈根大学尼尔斯·玻尔研究所; 挪威科技大学物理系）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究揭示超导体-空穴气异质结构中超流刚度与自旋磁化率的面内磁场非解析性及刚度张量傅里叶谐波，可作为非常规配对和立方Rashba耦合的实验指纹。
AI 中文摘要
超导体与二维空穴气异质结构是量子器件的有前景平台，但其内在性质（如非常规配对）难以通过实验直接探测。在此，我们展示了超流刚度与自旋磁化率的面内磁场依赖性表现出非解析性，这些特征编码了空穴气中诱导能隙的结构。此外，通过动力学电感测量可获得的刚度张量场角依赖性的傅里叶谐波，为非常规配对和立方Rashba耦合提供了指纹特征。
英文摘要
Superconductor and two-dimensional hole gas heterostructures are promising platforms for quantum devices, but their intrinsic properties, e.g., unconventional pairings, are hard to access experimentally. Here, we show that the in-plane-field dependence of the superfluid stiffness and spin susceptibility exhibits nonanalyticities encoding the induced gap structure in the hole gas. Additionally, Fourier harmonics of the stiffness tensor's field-angle dependence, accessible via kinetic-inductance measurements, provide fingerprints of unconventional pairing and cubic Rashba coupling.
Comments6 pages, 3 figures; Supplemental Material: 7 pages, 2 figures
