Solitary Waves of Planar Ferromagnets and the Breakdown of the Spin-Polarized Quantum Hall Effect

Details Solitary Waves of Planar Ferromagnets and the Breakdown of the Spin-Polarized Quantum Hall Effect Solitary Waves of Planar Ferromagnets and the Breakdown of the Spin-Polarized Quantum Hall Effect

1998-01-15

arxiv.org/abs/cond-mat/9801160v1

Phys. Rev. Lett. 80, 4554 (1998)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 3 eps-figures, revtex with epsf.tex and multicol.sty

Scientific paper

10.1103/PhysRevLett.80.4554

A branch of uniformly-propagating solitary waves of planar ferromagnets is identified. The energy dispersion and structures of the solitary waves are determined for an isotropic ferromagnet as functions of a conserved momentum. With increasing momentum, their structure undergoes a transition from a form ressembling a droplet of spin-waves to a Skyrmion/anti-Skyrmion pair. An instability to the formation of these solitary waves is shown to provide a mechanism for the electric field-induced breakdown of the spin-polarized quantum Hall effect.

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