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| Effect of the Perpendicular Magnetic Field and Nonadiabatic Spin-transfer Torque on the Vortex Dynamics |
| Journal of Magnetics, Volume 13, Number 4, 31 Dec 2008, Pages 157-159 |
Jung-Hwan Moon(Department of Materials Science of Engineering, Korea University), Kyung-Jin Lee*  (Department of Materials Science of Engineering, Korea University) |
| Abstract |
| The effect of the perpendicular field on the trajectory of a vortex core driven by spin-transfer torque was investigated using micromagnetic simulations. The trajectory of the vortex core was staggered due to distortions of the moving vortex core. The core trajectory was affected by both the perpendicular field and β value, which is the relative magnitude of nonadiabatic spin torque to the adiabatic spin torque. This suggests that the effect of the perpendicular field should be considered when examining a vortex core trajectory affected by β. |
| Keywords: micromagnetic calculation; vortex dynamics; spin transfer torque |
| DOI: 10.4283/JMAG.2008.13.4.157 |
| Full Text: PDF |
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