Title :
Effects of Dzyaloshinskii-Moriya interaction on magnetic vortex gyration
Author :
Luo, Y. ; Zhou, C. ; Wu, Y.
Author_Institution :
Phys., Fudan Univ., Shanghai, China
Abstract :
This study aims to investigate the effects of Dzyaloshinskii-Moriya interaction (DMI) on vortex dynamics using micromagnetic simulation. It is found that the DMI can induce a localized bias field on the core, tilt the spin at the disk edge, and significantly affects vortex core switching. The results demonstrate that the DMI can induce the vortex core gyration with large amplitude and high stability, which may be utilized to improve the emission power of vortex based nano-oscillators.
Keywords :
exchange interactions (electron); magnetic switching; micromagnetics; spin dynamics; Dzyaloshinskii-Moriya interaction; emission power; localized bias field; magnetic vortex gyration; micromagnetic simulation; vortex core switching; vortex dynamics; vortex-based nanooscillators; Magnetic confinement; Magnetic cores; Magnetic domain walls; Magnetic domains; Magnetization; Micromagnetics; Switches;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7156919
