Charge Transfer in Half-metallic (Sr2−xCax)FeMoO6 System

Structural transformation from tetragonal to monoclinic resulting from chemical pressure effect due to substitution of Sr^2+ by a smaller Ca^2+ in the double-perovskite (Sr2-xCax)FeMoO6 has been investigated. A detailed analysis of XRD (X-Ray diffraction) and XANES (X-ray absorption near-edge structure) data are presented to supplement the structural transformation and charge transfer of Fe and Mo ions in (Sr2−xCax)FeMoO6.