Electron spin resonance of Mn2+ in Cd2V2O7

Abstract

The electron spin resonance of Mn2+ impurities has been investigated in single crystals of Cd2V2O7. The spin-Hamiltonian parameters are gx = 2.0004(8), gy = 1.9995(8), gz = 2.0001(8), b20 = −419(1)g, b22 = 125(2)g, Ax = −86.7(3)g, Ay = −87.0(10)g, and Az = −87.4(5)g. The results have been compared with similar studies on isomorphic crystals and with a calculation employing the point-charge model for the crystal field. The model gives reasonable agreement with the experimental results.