Electric polarization of magnetic domain walls in magnetoelectrics

Abstract

Two prominent magnetoelectrics MnWO${}_4$ and CuO possess low-temperature commensurate paraelectric magnetically ordered phase. Here using Monte Carlo simulations we show that the walls between the domains of this phase are ferroelectric with the same electric polarization direction and value as that in the magnetoelectric phases of these compounds. We also suggest that experimental observation of electric polarization of domain walls in MnWO${}_4$ should help to determine the macroscopic interactions responsible for its magnetoelectric properties.

arXiv comment15 pages, 6 figures, 1 table

References in corpus (14)

• Spin current and magneto-electric effect in non-collinear magnets
• Multiferroicity, The coupling between magnetic and polarization
• Ferroelectricity in spiral magnets
• Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites
• Ferroelectric polarization flop in a frustrated magnet MnWO${}_4$ induced by magnetic fields
• Long-Range Magnetic Interactions in the Multiferroic Antiferromagnet $\mathrm{MnW}{\mathrm{O}}_4$
• Time-resolved imaging of magnetoelectric domain switching in multiferroic MnWO4
• Improper origin of polar displacements at CaTiO3 and CaMnO3 Twin Walls
• Magnetoelectric effect due to local noncentrosymmetry
• Directional magnetoelectric effects in MnWO4: magnetic sources of the electric polarization
• Domain dynamics in the multiferroic phase of MnWO4
• Landau theory for the phase diagram of the multiferroic Mn${}_{1-x}$(Fe,Zn,Mg)${}_x$WO${}_4$
• Interpretation of magnetoelectric phase states using the praphase concept and exchange symmetry
• Electric polarization of magnetic domain walls in magnetoelectrics

Cited by in corpus (1)

• Electric polarization of magnetic domain walls in magnetoelectrics