2010/06/01 by C. Tannous, A. Ghaddar, J. Gieraltowski · 3 citations
Engineering · Materials Science · Physics and Astronomy · #Chemical and Physical Properties of Materials #Cobalt #Demagnetizing field #Ferromagnetism #Geometric phase #Magnetic domain #Magnetic properties of thin films #Magnetization #Metallic Glasses and Amorphous Alloys #Nanowire #Signature (topology) #Spintronics #cond-mat.mtrl-sci #physics.comp-ph
paper · pdf · doi:10.1209/0295-5075/91/17001
published in Europhysics Letters (EPL) 91(1), 17001 (Institute of Physics) · 11 pages, 21 figures to submit to Europhysics Letters
arxiv created 2010/06/01 · openalex publication_date 2010/07/01 · arxiv updated 2015/05/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Magnetic nanowires are a good platform to study fundamental processes in magnetism and have many attractive applications in recording such as perpendicular storage and in spintronics such as non-volatile magnetic memory devices (MRAM) and magnetic logic devices. In this work, nanowires are used to study magnetization reversal processes through a novel geometric approach. Reversal modes imprint a definite signature on a parametric curve representing the locus of the critical switching field. We show how the different modes affect the geometry of this curve depending on the nature of the anisotropy (uniaxial or cubic anisotropy), demagnetization and exchange effects. The samples we use are electrochemically grown nickel and cobalt nanowires.