Experimental demonstration of the time reversal Aharonov-Casher effect
Mesoscale and Nanoscale Physics
2009-11-11 v1
Abstract
We demonstrate the time reversal Aharonov-Casher (AC) effect in small arrays of mesoscopic semiconductor rings. By using an electrostatic gate we can control the spin precession rate and follow the AC phase over several interference periods. We show that we control the precession rate in two different gate voltage ranges; in the lower range the gate voltage dependence is strong and linear and in the higher range the dependence in almost an order of magnitude weaker. We also see the second harmonic of the AC interference, oscillating with half the period. We finally map the AC phase to the spin-orbit interaction parameter alpha and find it is consistent with Shubnikov-de Haas analysis.
Keywords
Cite
@article{arxiv.cond-mat/0512264,
title = {Experimental demonstration of the time reversal Aharonov-Casher effect},
author = {Tobias Bergsten and Toshiyuki Kobayashi and Yoshiaki Sekine and Junsaku Nitta},
journal= {arXiv preprint arXiv:cond-mat/0512264},
year = {2009}
}
Comments
4 pages, 6 figures