Electric control of excitons in van der Waals antiferromagnet NiPS3

IF 6.8 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Science China Materials Pub Date : 2024-11-25 DOI:10.1007/s40843-024-3182-2

Han Wang (, ), Zhiyong Chen (, ), Bo Peng (, )

引用次数: 0

Abstract

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NiPS₃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NiPS₃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NiPS₃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.

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来源期刊

Science China Materials Materials Science-General Materials Science

CiteScore

11.40

自引率

7.40%

发文量

949

期刊介绍： Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.