Quantum dynamics of Mn${}^{2+}$ in dimethylammonium magnesium formate

Abstract

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 a phase transition from para to 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 in DMAMgF. In the high temperature paraelectric phase, we observe a large distribution of the zero field splitting that is attributed to high local disorder and further supported by DFT computations. In the low temperature ferroelectric phase, a single structure phase is detected and shown to contain two magnetic structures. The complex EPR signals were identifed by the means of Rabi oscillation method combined to crystal fields kernel density estimation.

References in corpus (9)

• Quantum Computation with Quantum Dots
• Quantum Computing in Molecular Magnets
• First-order structural transition in the multiferroic perovskite-like formate [(CH3)2NH2][Mn(HCOO)3]
• Multiphoton coherent manipulation in large-spin qubits
• Measuring Motional Dynamics of (CH${}_3$)${}_2$ NH${}_2^{+}$ in the Perovskite-Like Metal--Organic Framework [(CH${}_3$)${}_2$ NH${}_2$][Zn(HCOO)${}_3$]: The Value of Low-Frequency Electron Paramagnetic Resonance
• Tunable multi-photon Rabi oscillations in an electronic spin system
• Resonant single and multi-photon coherent transitions in a detuned regime
• Multi-photon Rabi oscillations in high spin paramagnetic impurity
• Magnetic resonance probing of ferroelectricity and magnetism in metal-organic frameworks

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