AI 中文总结
研究利用全壳纳米线约瑟夫森结，通过临界电流和零偏电阻中的独特偏斜指纹，为卡罗利 - 德热纳 - 马蒂康态的类似物提供实验证据，该态能级间距与超导能隙相当，便于观测。
AI 中文摘要
由被超导壳完全包裹的半导体芯组成的全壳混合纳米线已成为研究卡罗利 - 德热纳 - 马蒂康（CdGM）类似物的平台。这些亚能隙态可被视为阿布里科索夫涡旋中CdGM态的合成版本。与传统CdGM态不同，这些类似物的能级间距与超导能隙相当，便于通过隧道光谱技术观测。CdGM类似物的谱密度随轴向磁场呈特征性的偏斜模式，叠加在由磁通量子化引起的壳层能隙的利特 - 帕克斯振荡上。在此，我们通过基于全壳纳米线的过阻尼约瑟夫森结的临界电流和零偏电阻中的独特偏斜指纹，为CdGM类似物提供了实验证据。
英文摘要
Full-shell hybrid nanowires consisting of a semiconductor core fully enveloped by a superconducting shell have emerged as a platform to study Caroli-de Gennes-Matricon (CdGM) analogs. These subgap states can be considered a synthetic version of CdGM states in Abrikosov vortices. Unlike conventional CdGM states, these analogs exhibit a level spacing comparable to the superconducting gap, making them readily observable via tunneling spectroscopy techniques. The spectral density of CdGM analogs follows a characteristic skewed pattern as a function of applied axial magnetic field, an effect that is superimposed on the Little-Parks oscillations of the shell's gap induced by fluxoid quantization. Here, we provide experimental evidence for CdGM analogs through a distinctive skewness fingerprint in the critical current and zero-bias resistance of overdamped Josephson junctions based on full-shell nanowires.
Comments5 pages (main) + 2 pages (End Matter) + 4 pages (Supp. Mat.). 3 + 6 figures
