Visualization of Superconducting Gap Inhomogeneity in High-T_c Cuprate Superconductor Using Micro-ARPES

Abstract

We review our recent angle-resolved photoemission spectroscopy (ARPES) study utilizing high-resolution micro-ARPES to visualize and analyze the spatial inhomogeneity of superconducting gaps at the micro-scale in high-T_c cuprate superconductors. By combining micro-ARPES with advanced data analysis, we mapped and quantified physical parameters, revealing correlations likely linked to local doping inhomogeneity. This approach demonstrates the potential of micro-ARPES for combinatorial analysis and material design.