Work

High-Velocity Magnetic Domain Wall Motion Driven by Acoustic Spin Transfer Torque

Year: 2025

Type: article

Abstract: We predict high-velocity magnetic domain wall (DW) motion driven by out-of-plane acoustic spin in surface acoustic waves (SAWs). We demonstrate that the SAW propagating at a 30-degree angle relative to the x-axis of a 128° Y-LiNbO3 substrate exhibits uniform out-of-plane spin angular momentum. This acoustic spin triggers the DW motion at a velocity exceeding 50 m/s in a way that is similar to the spin-transfer-torque effect. This phenomenon highlights the potential of acoustic spin in enabling rapid DW displacement, offering an innovative approach to developing energy-efficient spintronic devices.

Source: Chinese Physics Letters

DOI: 10.1088/0256-307x/42/6/067403

Authors: Jiacheng Lu, Fa Chen, Yiming Shu, Yukang Wen, Hang Zou, Yuhao Liu, Shiheng Liang, Wei Luo, Yue Zhang

Institutions: Huazhong University of Science and Technology, Hubei University, Songshan Lake Materials Laboratory

Language: English

Topic: Magnetic properties of thin films

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4410132700

FWCI:

Cites: 22

Cited by:

Related to: 10