Lanthanum aluminate (110) 3 × 1 surface reconstruction

摘要

This paper describes a 3 × 1 surface reconstruction on the LAO (110) surface and its atomic structure analyzed from experimental electron diffraction data coupled with X-ray photoelectron spectroscopy analysis and reinforced by density functional theory calculations. We construct the multidimensional convex hull for the system with excess Al_2O_3 and in the presence of water. All the evidence points towards the reconstruction being very similar to the 3 × 1 reconstruction on the SrTiO_3 (110) surface with two hydrogen atoms added for valence neutrality.