Two-Dimensional Solitons on the Surface of Magnetic Fluids

Titelangaben

Richter, Reinhard ; Barashenkov, Igor V.:
Two-Dimensional Solitons on the Surface of Magnetic Fluids.
In: Physical Review Letters. Bd. 94 (2005) Heft 18 . - 184503.
ISSN 1079-7114
DOI: https://doi.org/10.1103/PhysRevLett.94.184503

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Abstract

We report an observation of a stable solitonlike structure on the surface of a ferrofluid, generated by a local perturbation in the hysteretic regime of the Rosensweig instability. Unlike other pattern-forming systems with localized 2D structures, magnetic fluids are characterized by energy conservation; hence their mechanism of soliton stabilization is different from the previously discussed gain-loss balance mechanism. The radioscopic measurements of the soliton’s surface profile suggest that locking on the wavelength defined by the nonmonotonic dispersion curve is instrumental in its stabilization.