Structure study on SrRu 1-x Mn x O 4 using the extended X-ray absorption fine structure spectroscopy

Abstract

The octahedron (BO₆) plays a crucial role in ground state for the layered perovskites oxides. Here, we report a structure study of the octahedra in Sr₂Ru_1-xMn_xO₄ based on Extended X-ray Absorption Fine Structure (EXAFS) method. EXAFS results reveal a clearly structural distortion around the doped Mn atoms, and Jahn-Teller effect in MnO₆ octahedra could be expected in the octahedra. This structural distortion may related to the chemical valance change when doping.