Kinetics of the Multiferroic Switching in MnWO${}_4$

Abstract

The time dependence of switching multiferroic domains in MnWO${}_4$ has been studied by time-resolved polarized neutron diffraction. Inverting an external electric field inverts the chiral magnetic component within rise times ranging between a few and some tens of milliseconds in perfect agreement with macroscopic techniques. There is no evidence for any faster process in the inversion of the chiral magnetic structure. The time dependence is well described by a temperature-dependent rise time suggesting a well-defined process of domain reversion. As expected, the rise times decrease when heating towards the upper boundary of the ferroelectric phase. However, switching also becomes faster upon cooling towards the lower boundary, which is associated with a first-order phase transition.

References in corpus (10)

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Cited by in corpus (10)

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• Magnetic order and electromagnon excitations in DyMnO3 studied by neutron scattering experiments
• Control of multiferroic domains by external electric fields in TbMnO3
• Structural dimerization in the commensurate magnetic phases of NaFe(WO${}_4$)${}_2$ and MnWO${}_4$
• Photo-creating supercooled spiral-spin states in a multiferroic manganite
• Chiral Order and Multiferroic Domain Relaxation in NaFeGe${}_2$O${}_6$
• Single-crystal investigations on the multiferroic material LiFe(WO${}_4$)${}_2$
• Multiferroic domain relaxation in (NH4)2[FeCl5(H2O)]