Electronic Origin of Distortion of Oxygen Octahedron in (La1-xMx)2CuO4 with M=Ca, Sr and Ba

Abstract
In the high T c material (La1-x M x )2CuO4 the oxygen octahedral cage surrounding a Cu atom is strongly distorted, and the change of T c accompanied by substitution of La with M(=Ca, Sr and Ba) is correlated with the Cu-O distance in the basal ab plane. The microscopic origin of the large distortion of the oxygen octahedron is discussed.

This publication has 7 references indexed in Scilit: