Light modulated magnetism and spin-orbit torque in a heavy metal/ferromagnet heterostructure based on van der Waals-layered ferroelectric materials

被引：2
作者：
Zhang, Wei [1 ,2 ]
Zhang, Aizhuo [1 ,2 ]
Zhang, Liangliang [1 ,2 ]
Cui, Ruijuan [1 ,2 ]
Lv, Baohua [1 ,2 ]
Xiao, Zhengyu [1 ,2 ,3 ]
Li, Dong [1 ,2 ]
Quan, Zhiyong [1 ,2 ]
Xu, Xiaohong [1 ,2 ]
机构：
[1] Shanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Magnet Mol & Magnet Informat Mat, Minist Educ, Taiyuan 030032, Peoples R China
[2] Shanxi Normal Univ, Res Inst Mat Sci, Collaborat Innovat Ctr Shanxi Adv Permanent Magnet, Taiyuan 030032, Peoples R China
[3] Karlsruhe Inst Technol, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany
来源：
APPLIED PHYSICS LETTERS | 2023年 / 123卷 / 09期
基金：
中国国家自然科学基金;
关键词：
MAGNETIZATION; ANISOTROPY; ENHANCEMENT; FILMS;
D O I：
10.1063/5.0160084
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This study presents experimental evidence of the substantial modulation of ferromagnetism and spin-orbit torque (SOT) efficiency in a Ta/Pt/Co/Ta/In2Se3 heterostructure with perpendicular magnetic anisotropy through light irradiation. An increase in SOT efficiency of similar to 20% and a reduction in critical switching current density of similar to 52% were observed. The significant modulation primarily originates from the photostrictive effect of a van der Waals-layered ferroelectric In2Se3 layer, which is assisted by thermal effects under light irradiation. The present research provides a potential approach to modulating magnetism and SOT efficiency for energy-efficient spintronic devices.
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页数：5
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