Multiferroic Dynamics of an Electric Field-Driven Composite Ferroelectric/Ferromagnetic Chain
Multiferroic Dynamics of an Electric Field-Driven Composite Ferroelectric/Ferromagnetic Chain
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DOI：
10.1007/s13369-014-1186-4
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发表时间：
2014-05
影响因子：
2.9
通讯作者：
T-C Wei;C. Jia
中科院分区：
文献类型：
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作者：
T-C Wei;C. Jia
用电场控制磁性具有根本的重要性，并且具有广泛的应用潜力。一个有前途的路线，以规避这个问题是适当合成的复合铁电（FE）/铁磁（FM）纳米和多层结构，可以作为定量的新的多铁性器件在室温下的元素。研究了复合FE/FM结中磁电效应的两种主要机制：界面电荷重排和应变效应。我们从理论上证明了一个相互的多铁性响应和一个完整的磁化切换薄FE/FM链中存在的快速振荡电场。
Controlling magnetism with an electric field is fundamentally important and bears the potential for a wide range of applications. A promising route to circumvent this problem is the appropriately synthesized composite ferroelectric(FE)/ferromagnetic(FM) nano and multilayer structures that may serve as elements in quantitatively new multiferroic devices at room temperature. Two mechanisms, which may underlay the magnetoelectric effect in composite FE/FM junctions, interfacial charge rearrangements and strain effects, are studied as the key ingredients for the magnetoelectric coupling. We demonstrate theoretically a mutual multiferroic response and a complete magnetization switching of a thin FE/FM chain in the presence of a fast oscillating electric field.