EPR Study of Mn^2^+ Doped Dicalcium Barium Propionate Single Crystals under Hydrostatic Pressure

The Mn^2^+ ESR was studied of $Ca_2Ba(C_2H-5CO_2)_6$ near the I-IV phase transition. An abrupt anomaly in the D-tensor is observed. at the transition point. No splitting is observed. No effect is observed. on the flipping of the propionate groups. The 3-fold axis appears to survive on the high-pressure phase. This phase is not tetragonal

Low temperature H-1 NMR relaxation studies of phase transitions in dicalcium barium propionate

The two low-temperature phase transitions in dicalcium barium propionate have been investigated by H-1 NMR relaxation (T-1,T-2,T-1 rho) studies carried out at a Larmor frequency of 300 MHz. The T-1 and T-1 rho results indicate the presence of C2H5 dynamics near these two transitions. We infer from the T-1 rho results that the slow motions of the C2H5 groups are responsible for the II-III transition

EPR Study of Mn^2^+ Doped Dicalcium Barium Propionate Single Crystals under Hydrostatic Pressure

The Mn^2^+ ESR was studied of $Ca_2Ba(C_2H-5CO_2)_6$ near the I-IV phase transition. An abrupt anomaly in the D-tensor is observed. at the transition point. No splitting is observed. No effect is observed. on the flipping of the propionate groups. The 3-fold axis appears to survive on the high-pressure phase. This phase is not tetragonal