Quantum dynamics of Mn²⁺ in dimethylammonium magnesium formate

Dimethylammonium magnesium formate, [(CH$_3$)$_2$NH$_2$][Mg(HCOO)$_3$] or DMAMgF, is a model to study high temperature hybrid perovskite-like dielectrics. This compound displays phase transition from para ferroelectric at about 260~K. Using multifrequency electron spin resonance in continuous wave and pulsed modes, we herein present the quantum dynamic of Mn$^{2+}$ ion probe DMAMgF. In paraelectric phase, observe large distribution zero field splitting that attributed local disorder further supported by DFT computations. low single structure detected shown contain two magnetic structures. The complex EPR signals were identifed means Rabi oscillation method combined crystal fields kernel density estimation.