Antinodal kink in the band dispersion of electron-doped cuprate ${\mathrm{La}}_{2-x}{\mathrm{Ce}}_x{\mathrm{CuO}}_{4\pm \delta }$

C. Y. Tang, Z. F. Lin, J. X. Zhang +11

Angle-resolved photoemission spectroscopy (ARPES) measurements have established the phenomenon of kink in band dispersion of high-$T_{\mathrm{c}}$ cuprate superconductors. However, syst…