Magnon-driven dynamics of frustrated skyrmion in synthetic antiferromagnets: effect of skyrmion helicity oscillation

Z Jin; T T Liu; Y Liu; Z P Hou; D Y Chen; Z Fan; M Zeng; X B Lu; X S Gao; M H Qin; J-M Liu

doi:10.1088/1367-2630/ac8175

New Journal of Physics (Jan 2022)

Magnon-driven dynamics of frustrated skyrmion in synthetic antiferromagnets: effect of skyrmion helicity oscillation

Z Jin,
T T Liu,
Y Liu,
Z P Hou,
D Y Chen,
Z Fan,
M Zeng,
X B Lu,
X S Gao,
M H Qin,
J-M Liu

Affiliations

Z Jin: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
T T Liu: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
Y Liu: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
Z P Hou: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
D Y Chen: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
Z Fan: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
M Zeng: ORCiD; Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
X B Lu: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
X S Gao: ORCiD; Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
M H Qin: ORCiD; Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China
J-M Liu: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University , Guangzhou 510006, People’s Republic of China; Laboratory of Solid State Microstructures, Nanjing University , Nanjing 210093, People’s Republic of China

DOI: https://doi.org/10.1088/1367-2630/ac8175
Journal volume & issue: Vol. 24, no. 7
p. 073047

Abstract

Read online

A theoretical study on the interplay of frustrated skyrmion and magnons should reveal new physics and future experiment designs. In this study, we investigate the magnon-driven dynamics of frustrated skyrmion in synthetic antiferromagnets based on micromagnetic simulations, focusing on the effect of skyrmion helicity oscillation. The oscillation speed and Hall angle of the frustrated skyrmion depending on the magnon intensity and damping constant are simulated, which demonstrates that the skyrmion helicity oscillation effectively suppresses Hall motion. The elastic scattering theory reveals that the helicity oscillation affects the scattering cross-section of injected magnons, which in turn effectively modulates the skyrmion Hall motion. This study provides a comprehensive understanding of magnon-skyrmion scattering in frustrated magnets, thus benefiting future spintronic and magnonic applications.

Published in New Journal of Physics

ISSN: 1367-2630 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Physics
Website: https://iopscience.iop.org/journal/1367-2630

About the journal

Abstract

Keywords