异质结
自旋电子学
磁化
材料科学
光电子学
半导体
铁磁性
凝聚态物理
控制重构
自旋(空气动力学)
范德瓦尔斯力
磁性半导体
带隙
自旋极化
有机半导体
作者
Yilv Guo,Yehui Zhang,Zhaobo Zhou,Xiwen Zhang,Bing Wang,Shijun Yuan,Shuai Dong,Jinlan Wang
出处
期刊:Materials horizons
[The Royal Society of Chemistry]
日期:2021-04-12
卷期号:8 (4): 1323-1333
被引量:5
摘要
Two-dimensional (2D) van der Waals (vdW) engineering has brought about many extraordinary and new physics concepts and potential applications. Herein, we propose a new type of spin-constrained optoelectronic device developed using 2D ferromagnetic semiconductor heterostructures (FMSs). It is based on a photoexcited double-band-edge transition model, involved coupling between the interlayer magnetic order and the spin-polarized band structure and can achieve the reversible switch of band alignment via reversal of magnetization. We demonstrate that such a unique magnetic optoelectronic device can be realized with a CrBr3/CrCl3 heterojunction and other 2D FMS heterojunctions that have the same direction as the easy magnetization axis and have a switchable band alignment that allows reconfiguration. This study opens a new application window for 2D vdW heterostructures and enables the possibility for fully vdW-based ultra-compact spintronics devices.
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