The temperature dependence of optical and EPR spectra for KZnF3∶Mn2+ crystal is studied by considering the contributions from both the static effect and the vibrational effect.The results are discussed.
By using the superposition model,the tetragonal field parameters Ds and Dt are calculated from the structural data of（TiO6）9- cluster in SrTiO3 crystal.Based on these values,the EPR g factors of the rhombic Ti3+ center in SrTiO3 are calculated by use of only one adjustable parameter.The results show good agreement with the observed values.
