Short waves in ferromagnetic media.
We discuss the propagation of nonlinear electromagnetic short waves in a magnetically saturated ferromagnetic thick film. The sample is magnetized to saturation by a field perpendicular to both the film plane and the propagation direction. A (2+1) dimensional asymptotic model equation generalizing the sine-Gordon one is derived. Line soliton solutions are exhibited; their stability condition is derived. When unstable, line solitons decay into stable two-dimensional lumps, which are studied both numerically and analytically.
Leblond
H
H
Laboratoire POMA, CNRS-FRE 2988, Université d'Angers, 2 Boulevard Lavoisier, 49045 Angers Cedex 1, France.
Manna
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M
D003198:Computer Simulation; D004574:Electromagnetic Fields; D008280:Magnetics; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D012542:Scattering, Radiation