The Effects of Disorder on the $ν=1$ Quantum Hall State

Details The Effects of Disorder on the $ν=1$ Quantum Hall State The Effects of Disorder on the $ν=1$ Quantum Hall State

2001-06-04

arxiv.org/abs/cond-mat/0106050v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 eps figures

Scientific paper

10.1103/PhysRevB.64.241309

A disorder-averaged Hartree-Fock treatment is used to compute the density of single particle states for quantum Hall systems at filling factor $\nu=1$. 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.

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