Fractionalization in spontaneous integer quantum Hall systems
Strongly Correlated Electrons
2012-08-03 v3 Mesoscale and Nanoscale Physics
Quantum Physics
Abstract
It is widely believed that integer quantum Hall systems do not have fractional excitations. Here we show the converse to be true for a class of systems where integer quantum Hall effect emerges spontaneously due to the interplay of itinerant electrons and noncoplanar magnetic ordering. We show that magnetic vortices in such systems, whose topological stability is guaranteed by the structure of the order parameter, indeed carry fractional charge.
Cite
@article{arxiv.1112.3347,
title = {Fractionalization in spontaneous integer quantum Hall systems},
author = {Rodrigo A. Muniz and Armin Rahmani and Ivar Martin},
journal= {arXiv preprint arXiv:1112.3347},
year = {2012}
}
Comments
4+ pages, 3 figures, 6 pages of supplemental material