The Eu-151 Mossbauer study for double perovskite REEuCr(2)O(6)

Double perovskite oxides REEuCr(2)O(6) (RE = La, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm) were prepared by solid state reaction method. The measurement of XRD, IR and Eu-151 Mossbauer spectra show that all samples are orthorhombic structure; as the atomic number of RE increases, the cell volumes decrease. The relationship between isomer shift and V is linear. Quadrupole spills are negative, and with atomic number oi RE increasing, their absolute values increase.