Single-oscillation two-dimensional solitons of magnetic polaritons.
The propagation of bulk polaritons in ferromagnetic slab is considered through a short-wavelength approximation. Neither the damping nor the demagnetizing field do affect essentially the propagation and stability of the line soliton. The stable line soliton may be destroyed by background instability: the latter is suppressed in a narrow strip. The unstable line soliton decays into lumps, which can be described both numerically and through a variational approach. Lump interactions are mentioned.
Leblond
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Laboratoire POMA, CNRS-UMR 6136, Université d'Angers, 2 Bd Lavoisier 49045 Angers Cedex 1, France.
Manna
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