Dynamic excitation of 2 vortex in a hard/soft bilayer nanodot
Authors
Mei Bi, Xin Wang, Li Zhang, Haipeng Lu, Longjiang Deng
Corresponding Author
Mei Bi
Available Online January 2017.
- DOI
- 10.2991/icmmita-16.2016.79How to use a DOI?
- Keywords
- vortex; nanodot; magnetic dynamic; microwave frequency.
- Abstract
The dynamic behaviors of 2 vortex in nanodot driven by microwave magnetic elds is investigated by micromagnetic simulations. The spin dynamics are analyzed by extracting the magnetic excitation spectrum from Fourier transform. Four resonance peaks are observed. Domain-wall resonance mode has been identified at the domain wall in the lowest frequency of the spectrum and a set of high-frequency spin wave excitations above 4.83 GHz. The resonant mechanism and associated underlying physics are completely different from those of vortex core with rotational mode. These results distinguish a 2 vortex from other spin-texture objects in dynamics and will be instrumental to the excitation of vortex for applications.
- Copyright
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Mei Bi AU - Xin Wang AU - Li Zhang AU - Haipeng Lu AU - Longjiang Deng PY - 2017/01 DA - 2017/01 TI - Dynamic excitation of 2 vortex in a hard/soft bilayer nanodot BT - Proceedings of the 2016 4th International Conference on Machinery, Materials and Information Technology Applications PB - Atlantis Press SP - 434 EP - 437 SN - 2352-538X UR - https://doi.org/10.2991/icmmita-16.2016.79 DO - 10.2991/icmmita-16.2016.79 ID - Bi2017/01 ER -