Dong Shuai, Xiang Hongjun, Dagotto Elbio
School of Physics, Southeast University, Nanjing 211189, China.
Key Laboratory of Computational Physical Sciences (Ministry of Education), State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200433, China.
Natl Sci Rev. 2019 Jul;6(4):629-641. doi: 10.1093/nsr/nwz023. Epub 2019 Feb 18.
The key physical property of multiferroic materials is the existence of coupling between magnetism and polarization, i.e. magnetoelectricity. The origin and manifestations of magnetoelectricity can be very different in the available plethora of multiferroic systems, with multiple possible mechanisms hidden behind the phenomena. In this review, we describe the fundamental physics that causes magnetoelectricity from a theoretical viewpoint. The present review will focus on mainstream physical mechanisms in both single-phase multiferroics and magnetoelectric heterostructures. The most recent tendencies addressing possible new magnetoelectric mechanisms will also be briefly outlined.
多铁性材料的关键物理特性是磁性与极化之间存在耦合，即磁电效应。在现有的大量多铁性体系中，磁电效应的起源和表现形式可能大不相同，现象背后隐藏着多种可能的机制。在这篇综述中，我们从理论角度描述了导致磁电效应的基本物理学原理。本综述将聚焦于单相多铁性材料和磁电异质结构中的主流物理机制。还将简要概述针对可能的新磁电机制的最新研究趋势。
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