PMID: 19113376Dec 31, 2008Paper

Control of the magnetoelectric domain-wall stability by a magnetic field in a multiferroic MnWO4

Physical Review Letters
K TaniguchiT Arima

Abstract

The relation between the orientation of the magnetic field and the flopped ferroelectric polarization has been investigated for multiferroic MnWO4. The ferroelectric single-domain state is retained across the polarization flop process when the direction of the applied magnetic field slightly deviates from the b axis within the ab plane. Furthermore, the electric polarization in the high-field P parallela phase is reversed when the P parallelb-to-P parallela transition takes place while decreasing and increasing the magnetic fields oppositely canted from the b axis. These results indicate that the symmetry breaking induced by a canted magnetic field determines the direction of the polarization flop, which corresponds to the direction of the vector spin chirality. The stability of the magnetoelectric domain walls in a canted magnetic field play a key role in the directional control of the electric polarization flop phenomenon.

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Citations

Mar 11, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·P TolédanoG Krexner
Jun 4, 2015·Journal of Physics. Condensed Matter : an Institute of Physics Journal·I P LobzenkoN V Ter-Oganessian
May 11, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·V FeleaCh Payen
Jan 17, 2012·Physical Review Letters·I FinaJ Fontcuberta

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