Electric control of excitons in van der Waals antiferromagnet NiPS_(3)  

范德华反铁磁体NiPS_(3)中激子的电调控

作　　者：Han Wang Zhiyong Chen Bo Peng 汪韩;陈志勇;彭波

机构地区：[1]National Engineering Research Center of Electromagnetic Radiation Control Materials,School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China [2]Key Laboratory of Multi Spectral Absorbing Materials and Structures of Ministry of Education,University of Electronic Science and Technology of China,Chengdu 611731,China

出　　处：《Science China Materials》2025年第3期928-932,共5页中国科学(材料科学)(英文版)

基　　金：supported by the National Natural Science Foundation of China(52021001,62250073,62450003).

摘　　要：The discovery of ferromagnetic two-dimensional(2D)materials has opened up new avenues for manipulating the spin of single atomic layer or a few atomic layers[1-5],and the magneto-optical coupling has played an important role in revealing the physical phenomena of magnetism at the nanoscale limit[5-8].Among them,excitons coupled to magnetic sequences have garnered significant research interest.二维范德华(vdW)磁性材料通过磁序与激子的耦合,为制造磁激子器件打开了新的方向.二维反铁磁(AFM)材料NiPS_(3)中的自旋激发与AFM磁序紧密耦合,为研究磁致激元提供了一个理想的平台.然而,迄今为止,用电场控制磁性材料中的磁致激子仍然是个未知数.在此,我们报告了通过偏置电压NiPS_(3)器件实现电场控制磁致激子的情况.在高负偏压下,由于空穴掺杂降低了电子-空穴对重组效率,电压可以操纵NiPS_(3)的光致发光(PL)强度.这项工作突出了将二维vdW AFM材料应用于电控磁光电子器件的可行性.

关 键 词：FERROMAGNETIC LIMIT ATOMIC 

分 类 号：O48[理学—固体物理]