2007/03/31 by A. A. Serga, Mikhail Kostylev, Serga, A. A. +4
Engineering · Physics and Astronomy · #FOS: Physical sciences #Magnetic properties of thin films #Magneto-Optical Properties and Applications #Pattern Formation and Solitons (nlin.PS) #Theoretical and Computational Physics #nlin.PS
paper · pdf · doi:10.48550/arxiv.0704.0024
First appeared in Prof. B. Hillebrands' research group Annual Report 2005 (http://www.physik.uni-kl.de/w_hilleb/ann05.html); also presented at Intermag'2006 Conference: M. Kostylev, A.A. Serga, and B. Hillebrands, Digests of International Magnetic Conference, May 8-12, 2006, San Diego, USA, FV03 (2006)
arxiv created 2007/03/31 · openalex publication_date 2007/03/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The formation of quasi-2D spin-wave waveforms in longitudinally magnetized stripes of ferrimagnetic film was observed by using time- and space-resolved Brillouin light scattering technique. In the linear regime it was found that the confinement decreases the amplitude of dynamic magnetization near the lateral stripe edges. Thus, the so-called effective dipolar pinning of dynamic magnetization takes place at the edges. In the nonlinear regime a new stable spin wave packet propagating along a waveguide structure, for which both transversal instability and interaction with the side walls of the waveguide are important was observed. The experiments and a numerical simulation of the pulse evolution show that the shape of the formed waveforms and their behavior are strongly influenced by the confinement.