标题： 约瑟夫森扫描隧道谱学在$d_{x^2-y^2}$波超导体中的应用：对铜氧化物超导体中赝能隙本质的探测 显示英文标题

标题： Josephson Scanning Tunneling Spectroscopy in $d_{x^2-y^2}$-wave superconductors: a probe for the nature of the pseudo-gap in the cuprate superconductors

摘要： 最近在约瑟夫森扫描隧道光谱学（JSTS）的发展中的进展为探索非常规超导体开辟了一条新途径。 我们证明，通过JSTS测量的临界电流，$I_c$，在缺陷周围和Fulde-Ferrell-Larkin-Ovchinnikov状态下，能够成像$d_{x^2-y^2}$-波超导体中的超导序参量的空间形式。 此外，我们表明，$I_c$可以探测到铜氧化物超导体伪间隙区域中相位不相干超导关联的存在，从而对其难以捉摸的性质提供了前所未有的见解。 这些结果建立了实验测得的$I_c$与超导序参量的空间结构之间的缺失理论联系。 显示英文摘要

摘要： Recent advances in the development of Josephson scanning tunneling spectroscopy (JSTS) have opened a new path for the exploration of unconventional superconductors. We demonstrate that the critical current, $I_c$, measured via JSTS, images the spatial form of the superconducting order parameter in $d_{x^2-y^2}$-wave superconductors around defects and in the Fulde-Ferrell-Larkin-Ovchinnikov state. Moreover, we show that $I_c$ probes the existence of phase-incoherent superconducting correlations in the pseudo-gap region of the cuprate superconductors, thus providing unprecedented insight into its elusive nature. These results provide the missing theoretical link between the experimentally measured $I_c$, and the spatial structure of the superconducting order parameter.