Taniyama Tomoyasu, Gohda Yoshihiro, Hamaya Kohei, Kimura Takashi
Department of Physics, Nagoya University, Nagoya, Japan.
Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Japan.
Sci Technol Adv Mater. 2024 Nov 5;25(1):2412970. doi: 10.1080/14686996.2024.2412970. eCollection 2024.
Artificial multiferroic heterostructures, that is to say, ferromagnetic/ferroelectric heterostructures, have been the subject of considerable research interest as a potential material basis for the creation of novel energy-efficient device applications. Given that polarization reversal occurs in ferroelectric materials when an electric field is applied, it is possible to modulate the magnetic properties of a ferromagnetic layer due to changes in the polarization charge associated with a ferroelectric material, or due to exchange coupling, ionic transport, or orbital hybridization at the interface between the ferromagnetic and ferroelectric materials. Another essential characteristic of ferroelectric materials is their inverse piezoelectricity, which induces strain through the application of an electric field. The inverse piezoelectric strain is transferred to the ferromagnetic layer, thereby modulating the magnetic properties due to the magnetoelastic effect. In comparison to the various effects, the influence of strain transfer on magnetic properties is particularly pronounced, offering promising avenues for controlling magnetic properties via an electric field without the use of an electric current. This review article aims to present an overview of recent developments in the field of electric field effects on magnetic properties, with a particular focus on the role of strain transfer in magneto-electric effects. The potential applications of artificial multiferroic heterostructures are discussed, including the control of magnetic anisotropy, as well as the manipulation of perpendicular magnetic anisotropy, magnetoresistance, interlayer exchange coupling, spin wave propagation, spin damping, magnetic phase, and superconductivity. The article concludes with a consideration of the future prospects of artificial multiferroic heterostructures for next-generation device applications.
人工多铁性异质结构，即铁磁/铁电异质结构，作为创建新型节能器件应用的潜在材料基础，一直是大量研究兴趣的主题。鉴于在施加电场时铁电材料中会发生极化反转，由于与铁电材料相关的极化电荷变化，或者由于铁磁材料与铁电材料界面处的交换耦合、离子传输或轨道杂化，有可能调制铁磁层的磁性能。铁电材料的另一个基本特性是其逆压电性，即通过施加电场诱导应变。逆压电应变传递到铁磁层，从而由于磁弹效应调制磁性能。与各种效应相比，应变传递对磁性能的影响尤为显著，为通过电场控制磁性能而不使用电流提供了有前景的途径。这篇综述文章旨在概述电场对磁性能影响领域的最新进展，特别关注应变传递在磁电效应中的作用。讨论了人工多铁性异质结构的潜在应用，包括磁各向异性的控制，以及垂直磁各向异性、磁电阻、层间交换耦合、自旋波传播、自旋阻尼、磁相和超导性的操纵。文章最后考虑了人工多铁性异质结构在下一代器件应用中的未来前景。
