Internal Excitations and Dissipative Damping of Quantum Hall Skyrmions

Details Internal Excitations and Dissipative Damping of Quantum Hall Skyrmions Internal Excitations and Dissipative Damping of Quantum Hall Skyrmions

1996-05-15

arxiv.org/abs/cond-mat/9605091v1

Physics

Condensed Matter

4 pages, REVTEX, 3 figures

Scientific paper

10.1103/PhysRevLett.77.1572

We propose an intrinsic maximum speed for dissipationless E cross B drift of Skyrmion quasiparticles in quantum Hall ferromagnets. When this speed is exceeded, Skyrmions can radiate spin-waves by making internal excitations which allow total spin to be conserved. Our proposal is illustrated by a time-dependent Hartree-Fock approximation calculation of the excitation spectrum for a Skyrmion bound to an impurity.

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