The Effects of Disorder on the $ν=1$ Quantum Hall State
arXiv:cond-mat/0106050 · doi:10.1103/PhysRevB.64.241309
Abstract
A disorder-averaged Hartree-Fock treatment is used to compute the density of single particle states for quantum Hall systems at filling factor $ν=1$. It is found that transport and spin polarization experiments can be simultaneously explained by a model of mostly short-range effective disorder. The slope of the transport gap (due to quasiparticles) in parallel field emerges as a result of the interplay between disorder-induced broadening and exchange, and has implications for skyrmion localization.
4 pages, 3 eps figures