Document Type
Article
Publication Date
2-1-2014
Publication Title
Journal of Applied Physics
Abstract
Switching behavior in ferromagnetic nanostructures is often determined by the formation and annihilation of domain walls (DWs). In contrast to the more familiar 180° DWs found in most nanostructures, 360° DWs are the proposed transition state of nanorings. This paper examines the formation of 360° DWs created by the application of a circular magnetic field using micromagnetic simulations. 360° DWs form from pairs of canting moments that are oppositely aligned, which each grow to form rotated domains bounded by two 180° DWs and the 180° DWs combine to form 360° DWs. The resulting 360° DWs occur in pairs of opposite topological winding number due to these domains of opposite canting direction. The final number of DWs formed is greatly impacted by symmetry, both of the ring and of the placement of the circular magnetic field.
Repository Citation
Bickel, Jessica E.; Smith, Spencer A.; and Aidala, Katherine E., "The Creation of 360° Domain Walls in Ferromagnetic Nanorings by Circular Applied Magnetic Fields" (2014). Physics Faculty Publications. 192.
https://engagedscholarship.csuohio.edu/sciphysics_facpub/192
DOI
10.1063/1.4864441
Version
Publisher's PDF
Publisher's Statement
© 2003 American Institute of Physics.
Volume
115
Issue
17
