Coherence of Currents in Mesoscopic Cylinders
Mesoscale and Nanoscale Physics
2009-10-30 v1
Abstract
The persistent currents driven by the pure Aharonov-Bohm type magnetic field in mesoscopic normal metal or semiconducting cylinders are studied. A two-dimensional (2D) Fermi surfaces are characterized by four parameters. Several conditions for the coherence and enhancement of currents are discussed. These results are then generalized to a three-dimensional (3D) thin-walled cylinder to show that under certain geometric conditions on the Fermi surface, a novel effect - the appearance of spontaneous currents is predicted.
Keywords
Cite
@article{arxiv.cond-mat/9701183,
title = {Coherence of Currents in Mesoscopic Cylinders},
author = {M. Stebelski and M. Szopa and E. Zipper},
journal= {arXiv preprint arXiv:cond-mat/9701183},
year = {2009}
}
Comments
17 pages, Latex, 8 figures available on request, to be published in Z.Physik B