电场控制磁性。
Control of magnetism by electric fields.
机构信息
1] WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan [2] Center for Spintronics Integrated Systems, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan [3] Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
1] RIKEN Center for Emergent Matter Science, Wako, Saitama 351-0198, Japan [2] Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan.
出版信息
Nat Nanotechnol. 2015 Mar;10(3):209-20. doi: 10.1038/nnano.2015.22.
The electrical manipulation of magnetism and magnetic properties has been achieved across a number of different material systems. For example, applying an electric field to a ferromagnetic material through an insulator alters its charge-carrier population. In the case of thin films of ferromagnetic semiconductors, this change in carrier density in turn affects the magnetic exchange interaction and magnetic anisotropy; in ferromagnetic metals, it instead changes the Fermi level position at the interface that governs the magnetic anisotropy of the metal. In multiferroics, an applied electric field couples with the magnetization through electrical polarization. This Review summarizes the experimental progress made in the electrical manipulation of magnetization in such materials, discusses our current understanding of the mechanisms, and finally presents the future prospects of the field.
已经在许多不同的材料体系中实现了对磁性和磁性能的电操控。例如，通过绝缘体向铁磁材料施加电场会改变其载流子种群。对于铁磁半导体的薄膜，载流子密度的这种变化反过来又会影响磁交换相互作用和磁各向异性；在铁磁金属中，它改变了控制金属磁各向异性的界面处的费米能级位置。在多铁性材料中，外加电场通过电极化与磁化耦合。这篇综述总结了在这些材料中实现磁化电操控的实验进展，讨论了我们目前对这些机制的理解，最后介绍了该领域的未来前景。
Zotero 插件