Off-centered immobile magnetic vortex under influence of spin-transfer torque
Mesoscale and Nanoscale Physics
2015-05-20 v2
Abstract
Equilibrium magnetization distribution of the vortex state magnetic nanoparticle is affected by the influence of the spin-transfer torque: an off-center out--of--plane vortex appears in the case of the disk shape particle and pure planar vortex in the case of asymmetric ring shape particle. The spin current causes extra out-of-plane magnetization structures identical to well known dip structures for the moving vortex. The shape of the dip structure depends on the current strength and value of the off-center displacement and it does not depend on the vortex polarity. The critical current depends on the nanodot thickness.
Cite
@article{arxiv.1010.5446,
title = {Off-centered immobile magnetic vortex under influence of spin-transfer torque},
author = {Volodymyr P. Kravchuk and Denis D. Sheka and Franz G. Mertens and Yuri Gaididei},
journal= {arXiv preprint arXiv:1010.5446},
year = {2015}
}