作者
Aitian Chen, Yan Wen, Bin Fang, Yuelei Zhao, Qiang Zhang, Yuansi Chang, Peisen Li, Hao Wu, Haoliang Huang, Yalin Lu, Zhongming Zeng, Jianwang Cai, Xiufeng Han, Tom Wu, Xi-Xiang Zhang, Yonggang Zhao
发表日期
2019/1/16
期刊
Nature communications
卷号
10
期号
1
页码范围
243
出版商
Nature Publishing Group UK
简介
Electrically switchable magnetization is considered a milestone in the development of ultralow power spintronic devices, and it has been a long sought-after goal for electric-field control of magnetoresistance in magnetic tunnel junctions with ultralow power consumption. Here, through integrating spintronics and multiferroics, we investigate MgO-based magnetic tunnel junctions on ferroelectric substrate with a high tunnel magnetoresistance ratio of 235%. A giant, reversible and nonvolatile electric-field manipulation of magnetoresistance to about 55% is realized at room temperature without the assistance of a magnetic field. Through strain-mediated magnetoelectric coupling, the electric field modifies the magnetic anisotropy of the free layer leading to its magnetization rotation so that the relative magnetization configuration of the magnetic tunnel junction can be efficiently modulated. Our findings offer significant …
学术搜索中的文章
A Chen, Y Wen, B Fang, Y Zhao, Q Zhang, Y Chang… - Nature communications, 2019