Magnetoresistance of composite fermions at \nu=1/2
Mesoscale and Nanoscale Physics
2009-10-30 v1
Abstract
We have studied temperature dependence of both diagonal and Hall resistivity in the vicinity of . Magnetoresistance was found to be positive and almost independent of temperature: temperature enters resistivity as a logarithmic correction. At the same time, no measurable corrections to the Hall resistivity has been found. Neither of these results can be explained within the mean-field theory of composite fermions by an analogy with conventional low-field interaction theory. There is an indication that interactions of composite fermions with fluctuations of the gauge field may reconcile the theory and experiment.
Keywords
Cite
@article{arxiv.cond-mat/9704043,
title = {Magnetoresistance of composite fermions at \nu=1/2},
author = {L. P. Rokhinson and V. J. Goldman},
journal= {arXiv preprint arXiv:cond-mat/9704043},
year = {2009}
}
Comments
9 pages, 4 figures