Nature Communications (Jul 2021)
Field-free spin-orbit torque-induced switching of perpendicular magnetization in a ferrimagnetic layer with a vertical composition gradient
- Zhenyi Zheng,
- Yue Zhang,
- Victor Lopez-Dominguez,
- Luis Sánchez-Tejerina,
- Jiacheng Shi,
- Xueqiang Feng,
- Lei Chen,
- Zilu Wang,
- Zhizhong Zhang,
- Kun Zhang,
- Bin Hong,
- Yong Xu,
- Youguang Zhang,
- Mario Carpentieri,
- Albert Fert,
- Giovanni Finocchio,
- Weisheng Zhao,
- Pedram Khalili Amiri
Affiliations
- Zhenyi Zheng
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Yue Zhang
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Victor Lopez-Dominguez
- Department of Electrical and Computer Engineering, Northwestern University
- Luis Sánchez-Tejerina
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina
- Jiacheng Shi
- Department of Electrical and Computer Engineering, Northwestern University
- Xueqiang Feng
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Lei Chen
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Zilu Wang
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Zhizhong Zhang
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Kun Zhang
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Bin Hong
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Yong Xu
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Youguang Zhang
- School of Electronics and Information Engineering, Beihang University
- Mario Carpentieri
- Dipartimento di Ingegneria Elettrica e dell’Informazione, Politecnico di Bari
- Albert Fert
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Giovanni Finocchio
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina
- Weisheng Zhao
- Fert Beijing Research Institute, School of Integrated Circuit Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
- Pedram Khalili Amiri
- Department of Electrical and Computer Engineering, Northwestern University
- DOI
- https://doi.org/10.1038/s41467-021-24854-7
- Journal volume & issue
-
Vol. 12,
no. 1
pp. 1 – 9
Abstract
Switching of ferrimagnets by current-induced spin-orbit torque is promising for spintronics, due to their high-speed dynamics and small macroscopic magnetization. Switching of perpendicularly magnetized materials, however, requires a bias field for symmetry breaking. Here, Zheng et al demonstrate field-free current-induced switching of perpendicular ferrimagnets, using a compositional gradient-driven Dzyaloshinskii–Moriya interaction.
