Formation of Guided Spin-Wave Bullets in Ferrimagnetic Film Stripes
- 25 September 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 101 (13), 137204
- https://doi.org/10.1103/physrevlett.101.137204
Abstract
The formation of quasi-2D nonlinear spin-wave eigenmodes in longitudinally magnetized stripes of a ferrimagnetic film, the so-called guided spin-wave bullets, was experimentally observed by using time- and space-resolved Brillouin light scattering spectroscopy and confirmed by numerical simulation. They represent stable spin-wave packets propagating along a waveguide structure, for which both transversal instability and interaction with the side edges of the waveguide are important. The experiments and the numerical simulation of the evolution of the spin-wave excitations show that the shape of the formed packets and their behavior are strongly influenced by the confinement conditions. The discovery of these modes demonstrates the existence of quasistable nonlinear solutions in the transition regime between one-dimensional and two-dimensional wave packet propagation.Keywords
This publication has 12 references indexed in Scilit:
- Nonlinear mode conversion in monodomain magnetic squaresPhysical Review B, 2007
- Dipole-exchange propagating spin-wave modes in metallic ferromagnetic stripesPhysical Review B, 2007
- Formation of longitudinal patterns and dimensionality crossover of nonlinear spin waves in ferromagnetic stripesPhysical Review B, 2006
- Parametric Generation of Forward and Phase-Conjugated Spin-Wave Bullets in Magnetic FilmsPhysical Review Letters, 2005
- Self-Generation of Two-Dimensional Spin-Wave BulletsPhysical Review Letters, 2004
- Collision properties of quasi-one-dimensional spin wave solitons and two-dimensional spin wave bulletsChaos: An Interdisciplinary Journal of Nonlinear Science, 2003
- Brillouin light scattering studies of confined spin waves: linear and nonlinear confinementPhysics Reports, 2001
- Linear and nonlinear diffraction of dipolar spin waves in yttrium iron garnet films observed by space- and time-resolved Brillouin light scatteringPhysical Review B, 2000
- Mode beating of spin wave beams in ferrimagnetic Lu/sub 2.04/Bi/sub 0.96/Fe/sub 5/O/sub 12/ filmsIEEE Transactions on Magnetics, 1998
- Backward-volume-wave microwave-envelope solitons in yttrium iron garnet filmsPhysical Review B, 1994