Disorder and the quantum Hall ferromagnet
Mesoscale and Nanoscale Physics
2009-10-31 v1
Abstract
The distinguishing feature of the quantum Hall ferromagnet is the identity between the electrical and topological charge densities of a spin distortion. In addition to the wealth of physics associated with Skyrmionic excitations of the quantum Hall ferromagnet, this identification permits a rather curious coupling of spinwaves to the disorder potential. A wavepacket of spinwaves has an associated, oscillating dipole charge distribution, due to the non-linear form of the topological density. We investigate the way in which this coupling modifies the conductivity and temperature dependence of magnetization of the quantum Hall ferromagnet.
Cite
@article{arxiv.cond-mat/9801324,
title = {Disorder and the quantum Hall ferromagnet},
author = {A. G. Green},
journal= {arXiv preprint arXiv:cond-mat/9801324},
year = {2009}
}
Comments
5 pages, latex, 10 pictures included in the text