%0 Journal Article
%K Electric fields
%K Multiferroics
%K magnetic anisotropy
%K Energy utilization
%K Textures
%K Thin film devices
%K Vortex flow
%K Electric-field control
%K Low energy consumption
%K Magnetoelastic energy
%K Magnetoelectric thin films
%K Phase-field simulation
%K Pulsed electric field
%K Reverse circulation
%K Spin polarized currents
%K Electric variables measurement
%A Y Zhang
%A C W Wang
%A H Huang
%A J Lu
%A R Liang
%A J F Liu
%A R Peng
%A Q Zhang
%A Q Zhang
%A J Wang
%A L Gu
%A X.-F Han
%A L.-Q Chen
%A Ramamoorthy Ramesh
%A C.-W Nan
%A J Zhang
%B Science Bulletin
%D 2020
%G eng
%I Elsevier B.V.
%R 10.1016/j.scib.2020.04.008
%T Deterministic reversal of single magnetic vortex circulation by an electric field
%X The ability to control magnetic vortex is critical for their potential applications in spintronic devices. Traditional methods including magnetic field, spin-polarized current etc. have been used to flip the core and/or reverse circulation of vortex. However, it is challenging for deterministic electric-field control of the single magnetic vortex textures with time-reversal broken symmetry and no planar magnetic anisotropy. Here it is reported that a deterministic reversal of single magnetic vortex circulation can be driven back and forth by a space-varying strain in multiferroic heterostructures, which is controlled by using a bi-axial pulsed electric field. Phase-field simulation reveals the mechanism of the emerging magnetoelastic energy with the space variation and visualizes the reversal pathway of the vortex. This deterministic electric-field control of the single magnetic vortex textures demonstrates a new approach to integrate the low-dimensional spin texture into the magnetoelectric thin film devices with low energy consumption. © 2020 Science China Press