Multimode switching induced by a transverse field planar magnetic nanowires

Bryan, M.T.; Atkinson, D.; Allwood, D.A.

Abstract

We report how transverse fields affect the axial field needed to "inject" domain walls from a large Permalloy (Ni80Fe20) pad into planar nanowires of width 184 nm, 303 nm, 321 nm, and 537 nm fabricated by electron beam lithography. For the narrowest wire, different switching fields are observed under the same transverse field conditions, indicating that more than one mode or state for the domain walls may exist. In contrast, in the widest wires a transverse field causes each reversal event to occur in two stages. The different response may be attributed to the magnetostatic energy differences of domain walls in wires of different widths.

Citation

Bryan, M., Atkinson, D., & Allwood, D. (2006). Multimode switching induced by a transverse field planar magnetic nanowires. Applied Physics Letters, 88(3), https://doi.org/10.1063/1.2162263

• Journal Article Type: Article
• Publication Date: Jan 16, 2006
• Deposit Date: Dec 4, 2006
• Publicly Available Date: Apr 21, 2011
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Electronic ISSN: 1077-3118
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 88
• Issue: 3
• DOI: https://doi.org/10.1063/1.2162263
• Keywords: Domain-wall, Metastable states, Wire, Nanostructures, Nanoelements, Mechanisms, Dynamics.
• Public URL: https://durham-repository.worktribe.com/output/1587705