稀土正铁氧体单晶的超快光磁研究进展  

Investigation on ultrafast opto-magnetism in rare earth orthoferrites single crystals

作　　者：武安华[1] 王博[1] 赵向阳[1] 满沛文 谢涛 徐晓东[1] 苏良碧[1] 

机构地区：[1]中国科学院上海硅酸盐研究所,上海200050

出　　处：《中国科学：技术科学》2017年第11期1177-1188,共12页Scientia Sinica(Technologica)

基　　金：国家自然科学基金(批准号:51372257;51572275);上海市科委国际合作(批准号:14520710400)资助项目

摘　　要：正交钙钛矿结构ReFeO_3系列稀土正铁氧体材料是一类在近红外波段透明的铁磁材料,近年来关于ReFeO_3的超快自旋重取向及其相干控制的研究时有报道.自旋重取向以及超快磁相变,不仅具有重要的学术价值,同时必将加速超快光磁效应在自旋电子器件中的应用.随着THz技术的不断发展,基于ReFeO_3晶体的交换相互作用的超快光学调控,对磁学的基础研究具有重要的意义.本文结合笔者最近几年的研究工作以及国内外ReFeO_3晶体的超快光磁的研究情况,介绍ReFeO_3晶体超快光磁的研究进展,并对将来该类晶体的生长和光磁研究进行了展望.The ReFeO3 compounds belong to non-collinear antiferromagnet with unique magnetic properties. A series of outstanding achievement about ultrafast opto-magnetism on rare-earth orthoferrites crystals have been reported since 2004, including ultrafast laser-induced spin reorientation phase transition and its coherent control by a single laser pulse. Ultrafast laser-induced spin reorientation phase transition is expected to have high impact on the development of novel devices based on ultrafast control of magnetic state of matter. As the continuous progress of THz technology, ultrafast optical modification of exchange interactions based on ReFeO3 single crystal will be significant to fundamental research in magnetism. In this paper, combined our investigation with international investigations on ReFeO3 crystal growth and ultrafast opto-magnetism, the authors introduce on the progress of ultrafast opto-magnetism in ReFeO3 crystals. Based on them, we make a perspective on ReFeO3 crystal growth and application.

关 键 词：稀土正铁氧体 超快光磁 自旋重取向 

分 类 号：TM277[一般工业技术—材料科学与工程]