Modulated multiferroic properties of MnWO4 via chemical doping
Modulated multiferroic properties of MnWO4 via chemical doping
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通过化学掺杂调节 MnWO4 的多铁性
DOI：
10.1039/c5ra21079h
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发表时间：
2016
期刊：
影响因子：
3.9
通讯作者：
Du Y. W.
中科院分区：
文献类型：
--
作者：
Yang J.;Chen J.;Fang Y.;Han Z. D.;Yan S. M.;Qian B.;Jiang X. F.;Wang D. H.;Du Y. W.
在这里，我们制备了x=0，0.02，0.04，0.06的多晶Mn1-−xNixWO4陶瓷，用于研究其磁性、铁电和多铁性。随着x的增加，Ni2+取代逐渐扩大了晶格，改善了磁性能，导致了对样品电学性质的强烈调制。对于Mn0.96Ni0.04WO4，在低于TAF2的整个温度范围内都观察到了铁电极化，并被外加磁场很好地修正，本文在自旋电流模型的框架下对此进行了讨论。
Here we prepare polycrystalline Mn1−xNixWO4 ceramics with x = 0, 0.02, 0.04, 0.06 for investigating their magnetic, ferroelectric, and multiferroic properties. The Ni2+-substitution gradually expands the lattice and modifies the magnetic performance with increasing x, resulting in a strong modulation of electric properties of those samples. For Mn0.96Ni0.04WO4, ferroelectric polarization is observed in the whole temperature regime below TAF2, and is well modified by an external magnetic field, which is discussed under the framework of a spin-current model in this manuscript.