Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevB.87.214422
Title: Magnetic vortex dynamics in thickness-modulated Ni80Fe 20 disks
Authors: Shimon, G.
Adeyeye, A.O. 
Ross, C.A.
Issue Date: 21-Jun-2013
Source: Shimon, G., Adeyeye, A.O., Ross, C.A. (2013-06-21). Magnetic vortex dynamics in thickness-modulated Ni80Fe 20 disks. Physical Review B - Condensed Matter and Materials Physics 87 (21) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.87.214422
Abstract: The magnetic vortex dynamics in thickness-modulated Ni80Fe 20 disks in the form of a Ni80Fe20 lens on top of a Ni80Fe20 disk are investigated. The vortex core location can be systematically controlled via the geometry, and the propagation and annihilation can be detected using ferromagnetic resonance measurements. The thickness modulation provides an additional shape anisotropy, which defines the vortex chirality in the disk depending on the magnetization reversal history and the magnetic interactions between the disk and the lens. The vortex propagation and annihilation in each layer were identified by their resonance modes. © 2013 American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/82649
ISSN: 10980121
DOI: 10.1103/PhysRevB.87.214422
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