2011/10/19 by Voicu O. Dolocan, Voicu O Dolocan · 2 citations
Physics and Astronomy · #Aspect ratio (aeronautics) #Demagnetizing field #Dispersion (optics) #Dispersion relation #Enhanced Data Rates for GSM Evolution #Magnetic properties of thin films #Micromagnetics #Nanowire #Quantum and electron transport phenomena #Spatial dispersion #Spin wave #Topological Materials and Phenomena #cond-mat.mtrl-sci
paper · pdf · doi:10.1088/0953-8984/23/44/446005
published in Journal of Physics Condensed Matter 23(44), 446005 (IOP Publishing) · 8 pages, 5 figures
openalex publication_date 2011/10/19 · arxiv created 2011/11/16 · arxiv updated 2011/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The spin-wave modes of cylindrical nanowires of moderate diameter-to-length ratios are investigated in this paper. Based on three-dimensional simulations and analytical calculations we determine the spatial structures of the modes. We show that standing spin waves and localized edge modes form the discrete spectrum of the nanowires. Using a simple analytical model we infer an extended dispersion relation for spin waves in cylinders. Considering the variation of the demagnetizing (internal) field we show that the localized dipole-exchange modes at the edges are always present.