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Ordered state of the intrinstic two-component magnetoelectric material Li2CuZrO4 according to 7Li NMR dataстатья
- Автор: Vavilova E.L.
- Журнал: Magnetic Resonance in Solids
- Том: 25
- Номер: 2
- Год издания: 2023
- DOI: 10.26907/mrsej-23202
- Аннотация: The magnetic system of the Li2CuCrO4 compound is characterized by the formation of helical spin structures in CuO2 chains due to strong frustrations of the exchange interaction. The double position of lithium ions determines the existence of the dielectric glass state at T<=70 K. In this work, using the NMR technique, we found the activation energy of the dipole glass system Ea = 101 K and determined the type of helicoidal copper spin structure as a "screw". It was demonstrated how the high-temperature interaction of strongly correlated spin and dielectric subsystems in this compound paradoxically prevents the appearance of multiferroic behavior in the ordered phase.
- Добавил в систему: Вавилова Евгения Леонидовна