Data related to "Suppression of Spectral Gap and Flat Bands on a Cuprate Superconductor Side-Surface"

This dataset contains angle-resolved photoemission spectroscopy (ARPES) measurements and numerical Bogoliubov–de Gennes (BdG) calculations associated with the study “Suppression of Spectral Gap and Flat Bands on a Cuprate Superconductor Side-Surface.” The ARPES measurements were performed on overdoped La₂₋ₓSrₓCuO₄ (LSCO, x = 0.22) at the I05 beamline of Diamond Light Source. The deposited experimental data are NeXus (.nxs) files containing nodal and antinodal measurements at different temperatures.

The files are organized as follows: Antinodes (100) ------------------------------------ earlier measurement at 6K - from i05-176042.nxs to i05-176068.nxs later measurement at 6K - from i05-176216.nxs to i05-176229.nxs (100) earlier measurement at 35K - from i05-176194.nxs to i05-176202.nxs later measurement at 35K - from i05-176408.nxs to i05-176422.nxs Nodes (100) ------------------------------------- earlier measurement at 6K - from i05-176102.nxs to i05-176109.nxs later measurement at 6K - from i05-176235.nxs to i05-176252.nxs earlier measurement at 35K - from i05-176175.nxs to i05-176183.nxs later measurement at 35K - from i05-176398.nxs to i05-176404.nxs Antinodes (110) ------------------------------------ 6K - from i05-165982.nxs to i05-166026.nxs 20K - from i05-166076.nxs to i05-166091.nxs 35K - from i05-166118.nxs to i05-166133.nxs The dataset also contains MATLAB source code for the self-consistent BdG calculations used to model the electronic structure near the cuprate side surface and investigate the effects of surface roughness and disorder on the predicted flat-band states.