A New Multiferroic Material: MnWO4

Abstract

We report the multiferroic behaviour of MnWO${}_4$, a magnetic oxide with monoclinic crystal structure and spiral long-range magnetic order. Based upon recent theoretical predictions MnWO${}_4$ should exhibit ferroelectric polarization coexisting with the proper magnetic structure. We have confirmed the multiferroic state below 13 K by observing a finite electrical polarization in the magnetically ordered state via pyroelectric current measurements.

5 pages, 3 figures

References in corpus (5)

• Spin current and magneto-electric effect in non-collinear magnets
• Ferroelectricity in spiral magnets
• Multiferroics: different ways to combine magnetism and ferroelectricity
• Ferroelectric polarization flop in a frustrated magnet MnWO${}_4$ induced by magnetic fields
• Field induced linear magneto-elastic coupling in multiferroic TbMnO3

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