Magnetoelectric effects in multiferroic Y-type hexaferrites Ba(0.3)Sr(1.7)CoxMg(2-x)Fe(12)O(22)  被引量:1

Magnetoelectric effects in multiferroic Y-type hexaferrites Ba0.3Sr1.7CoxMg2-xFe12O22

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作  者:Yanfen Chang Kun Zhai Young Sun 畅艳芬;翟昆;孙阳(Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Science,University of Chinese Academy of Sciences,Beijing 100190,China)

机构地区:[1]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]School of Physical Science,University of Chinese Academy of Sciences,Beijing 100190,China

出  处:《Chinese Physics B》2020年第3期402-405,共4页中国物理B(英文版)

基  金:Project supported by the National Natural Science Foundation of China(Grant No.51725104);Beijing Natural Science Foundation,China(Grant No.Z180009)。

摘  要:Y-type hexaferrites with tunable conical magnetic structures are promising single-phase multiferroics that exhibit large magnetoelectric effects. We have investigated the influence of Co substitution on the magnetoelectric properties in the Y-type hexaferrites Ba(0.3)Sr(1.7)CoxMg(2-x)Fe(12)O(22)(x = 0.0, 0.4, 1.0, 1.6). The spin-induced electric polarization can be reversed by applying a low magnetic field for all the samples. The magnetoelectric phase diagrams of BaBa(0.3)Sr(1.7)CoxMg(2-x)Fe(12)O(22) are obtained based on the measurements of magnetic field dependence of dielectric constant at selected temperatures. It is found that the substitution of Co ions can preserve the ferroelectric phase up to a higher temperature, and thus is beneficial for achieving single-phase multiferroics at room temperature.Y-type hexaferrites with tunable conical magnetic structures are promising single-phase multiferroics that exhibit large magnetoelectric effects. We have investigated the influence of Co substitution on the magnetoelectric properties in the Y-type hexaferrites Ba0.3Sr1.7CoxMg2-xFe12O22(x = 0.0, 0.4, 1.0, 1.6). The spin-induced electric polarization can be reversed by applying a low magnetic field for all the samples. The magnetoelectric phase diagrams of BaBa0.3Sr1.7CoxMg2-xFe12O22 are obtained based on the measurements of magnetic field dependence of dielectric constant at selected temperatures. It is found that the substitution of Co ions can preserve the ferroelectric phase up to a higher temperature, and thus is beneficial for achieving single-phase multiferroics at room temperature.

关 键 词:MULTIFERROIC MAGNETOELECTRIC effect HEXAFERRITE 

分 类 号:TB34[一般工业技术—材料科学与工程] O469[理学—凝聚态物理]

 

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