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首页> 外文期刊>Physical review >Multiferroicity and hydrogen-bond ordering in (C_2H_5NH_3)_2CuCl_4 featuring dominant ferromagnetic interactions
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Multiferroicity and hydrogen-bond ordering in (C_2H_5NH_3)_2CuCl_4 featuring dominant ferromagnetic interactions

机译：具有主要铁磁相互作用的（C_2H_5NH_3）_2CuCl_4中的多铁性和氢键有序

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摘要

We demonstrate that ethylammonium copper chloride, (C_2H_5NH_3)_2CuCl_4, a member of the hybrid perov-skite family is an electrically polar and magnetic compound with dielectric anomaly around the Curie point (247 K). We have found large spontaneous electric polarization below this point accompanied with a color change in the sample. The system is also ferroelectric, with large remnant polarization (37 μC/cm~2) that is comparable to classical ferroelectric compounds. The results are ascribed to hydrogen-bond ordering of the organic chains. The coexistence of ferroelectricity and dominant ferromagnetic interactions allows to relate the sample to a rare group of magnetic multiferroic compounds. In such hybrid perovskites the underlying hydrogen bonding of easily tunable organic building blocks in combination with the 3d transition-metal layers offers an emerging pathway to engineer multifuctional multiferroics.
机译：我们证明乙基杂铜氯化物，（C_2H_5NH_3）_2CuCl_4，杂化钙钛矿-杂化石族的成员是一种电极性和磁性化合物，在居里点附近（247 K）具有介电异常。在此点以下，我们发现了较大的自发极化，并伴随着样品颜色的变化。该系统也是铁电系统，具有很大的剩余极化（37μC/ cm〜2），可与传统铁电化合物相比。结果归因于有机链的氢键排序。铁电和主要铁磁相互作用的共存使样品与稀有的一组磁性多铁化合物相关。在这种混合钙钛矿中，易于调节的有机结构单元与3d过渡金属层的潜在氢键结合为工程化多功能多铁性化合物的开发提供了一种新兴途径。

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  • 来源
    《Physical review》 |2010年第22期|P.224434.1-224434.6|共6页
  • 作者

    B. Kundys; A. Lappas; M. Viret; V. Kapustianyk; V. Rudyk; S. Semak; Ch. Simon; I. Bakaimi;

  • 作者单位

    Service de Physique de l'Etat Condense, DSM/IRAMIS/SPEC, CEA Saclay URA CNRS 2464, 91191 Gif-Sur-Yvette Cedex, France;

    rnInstitute of Electronic Structure and Laser, Foundation for Research and Technology, P.O. Box 1385, Vassilika Vouton, 711 10 Heraklion,Crete, Greece;

    rnService de Physique de l'Etat Condense, DSM/IRAMIS/SPEC, CEA Saclay URA CNRS 2464, 91191 Gif-Sur-Yvette Cedex, France;

    rnScientific-Technical and Educational Center of Low-Temperature Studies, Ivan Franko National University of Lviv, Dragomanova str.50, UA-79005 Lviv, Ukraine Scientific and Educational Center 'Fractal,' Ivan Franko National University of Lviv, Dragomanova str. 50, UA-79005 Lviv, Ukraine Physical Department, Ivan Franko National University of Lviv, Dragomanova str. 50, UA-79005 Lviv, Ukraine;

    rnScientific-Technical and Educational Center of Low-Temperature Studies, Ivan Franko National University of Lviv, Dragomanova str.50, UA-79005 Lviv, Ukraine Scientific and Educational Center 'Fractal,' Ivan Franko National University of Lviv, Dragomanova str. 50, UA-79005 Lviv, Ukraine;

    rnScientific and Educational Center 'Fractal,' Ivan Franko National University of Lviv, Dragomanova str. 50, UA-79005 Lviv, Ukraine Physical Department, Ivan Franko National University of Lviv, Dragomanova str. 50, UA-79005 Lviv, Ukraine;

    Laboratoire CRISMAT, CNRS UMR 6508, ENSICAEN, 6 Boulevard du Marechal Juin, 14050 Caen Cedex, France;

    rnInstitute of Electronic Structure and Laser, Foundation for Research and Technology, P.O. Box 1385, Vassilika Vouton, 711 10 Heraklion,Crete, Greece Department of Physics, University of Crete, P.O. Box 2208, 71003 Heraklion, Greece;

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  • 正文语种 eng
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  • 关键词

    polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials; nonmetallic ferromagnetic materials; antiferromagnetics;

    机译：聚合物和塑料;橡胶;合成纤维和天然纤维;有机金属和有机材料;非金属铁磁材料;反铁磁;

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