Studies of the local release factors at a structure phase transition for Mn2+ in RbCaF3 and RbCdF3 crystals

摘要

The local release factors k, which denote the release effect of the impurity-ligand bond along the C-4 axis at the cubic-to-tetragonal phase transition, are studied for Mn2+ ion in RbCaF3 and RbCdF3 crystals by analysing the magnetic resonance data. The results show that, similar to the local order parameters phi at the same T-T-c, the local release factors fi for both doped crystals are close to each other, but they are different from the intrinsic release factors in the corresponding host crystals. [References: 26]