Dielectric anomaly and magnetoelectric effect accompanying a charge ordering in the electron-doped manganite Ca1-xSrxMn0.85Sb0.15O3
Dielectric anomaly and magnetoelectric effect accompanying a charge ordering in the electron-doped manganite Ca1-xSrxMn0.85Sb0.15O3
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电子掺杂锰矿 Ca1-xSrxMn0.85Sb0.15O3 中伴随电荷排序的介电异常和磁电效应
DOI：
10.1088/1742-6596/969/1/012094
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Michiaki Matsukawa and Ramanathan Suryanarayanan
中科院分区：
文献类型：
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作者：
Haruka Taniguchi;Hidenori Takahashi;Akihiro Terui;Satoru Kobayashi;Michiaki Matsukawa and Ramanathan Suryanarayanan
我们报道了A位取代的钙钛矿化合物Ca 1− x Sr x Mn 0.85 Sb 0.15 O3（x= 0，0.1，0.2和0.3）的介电和磁性，以研究电子掺杂锰氧化物的磁电效应。这些化合物的介电常数在磁转变温度附近显示出宽峰，这可能与电荷有序转变有关。磁场的施加抑制了介电常数的宽最大值，表明存在强磁电效应。根据组合电荷有序模型讨论了观测到的介电异常和磁电效应。
We report on the dielectric and magnetic properties of the A-site substituted perovskite compounds Ca 1− x Sr x Mn 0.85 Sb 0.15 O 3 (x= 0, 0.1, 0.2 and 0.3), to examine the magnetoelectric effect of electron-doped manganites. The dielectric constant of these compounds shows a broad peak around the magnetic transition temperature, which is probably associated with a charge ordering transition. Application of magnetic field suppresses the broad maximum of the dielectric constant, indicating the presence of the strong magnetoelectric effect. The observed dielectric anomaly and magnetoelectric effect have been discussed on the basis of the combined charge ordering model.