Intrinsic Electronic Structure and Nodeless Superconducting Gap of $\mathrm{YB}{\mathrm{a}}_2\mathrm{C}{\mathrm{u}}_3{\mathrm{O}}_{7-\delta }$ Observed by Spatially-Resolved Laser-Based Angle Resolved Photoemission Spectroscopy

Shuaishuai Li, Taimin Miao, Chaohui Yin +17

The spatially-resolved laser-based high resolution ARPES measurements have been performed on the optimally-doped $\mathrm{YB}{\mathrm{a}}_2\mathrm{C}{\mathrm{u}}_3{\mathrm{O}}_{7-\delta }$ (Y123) superconductor. For the f…