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首页> 外文期刊>Physical review >Electric-field control of the chiral magnetism of multiferroic MnWO_4 as seen via polarized neutron diffraction
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Electric-field control of the chiral magnetism of multiferroic MnWO_4 as seen via polarized neutron diffraction

机译:极化中子衍射观察到的多铁性MnWO_4手性磁性的电场控制

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摘要

The chiral components in the magnetic order in multiferroic MnWO_4 have been studied by neutron diffraction using spherical polarization analysis as a function of temperature and of external electric field. We show that sufficiently close to the ferroelectric transition at T=12.3 K it is possible to switch the chiral component by applying moderate electric fields at constant temperature. Full hysteresis cycles can be observed which indicate strong pinning of the magnetic order. MnWO_4, furthermore, exhibits a magnetoelectric memory effect across heating into the paramagnetic and paraelectric phase.
机译:通过使用球偏振分析的中子衍射,研究了多铁性MnWO_4的磁性顺序中的手性成分随温度和外部电场的变化。我们表明,在T = 12.3 K处足够接近铁电跃迁,可以通过在恒定温度下施加适度的电场来切换手性组分。可以观察到完整的磁滞循环,表明磁阶的牢固钉扎。此外,MnWO_4在加热到顺磁和顺电相中表现出磁电记忆效应。

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  • 来源
    《Physical review》 |2010年第5期|p.054430.1-054430.5|共5页
  • 作者单位

    II. Physikalisches Institut, Universitaet zu Koeln, Zuelpicher Str. 77, D-50937 Koeln, Germany;

    II. Physikalisches Institut, Universitaet zu Koeln, Zuelpicher Str. 77, D-50937 Koeln, Germany;

    Institut fuer Festkoerperforschung, Forschungszentrum Juelich GmbH, JCNS at ILL, 38042 Grenoble Cedex 9, France;

    Institut fuer Festkoerperforschung, Forschungszentrum Juelich GmbH, JCNS at ILL, 38042 Grenoble Cedex 9, France;

    Institut Nanosciences et Cryogenic CEA-Grenoble, DRFMC-SPSMS-MDN, 38054 Grenoble Cedex 9, France;

    Institut fuer Kristallographie, Universitaet zu Koeln, Zuelpicher Str. 49b, D-50674 Koeln, Germany;

    Institut fuer Kristallographie, Universitaet zu Koeln, Zuelpicher Str. 49b, D-50674 Koeln, Germany;

    II. Physikalisches Institut, Universitaet zu Koeln, Zuelpicher Str. 77, D-50937 Koeln, Germany;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    magnetomechanical and magnetoelectric effects, magnetostriction; domain walls and domain structure;

    机译:磁机械和磁电效应;磁致伸缩;畴壁和畴结构;

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