Controlling inelastic cotunneling through an interacting quantum dot by a circularly-polarized field
Mesoscale and Nanoscale Physics
2009-11-11 v2 Statistical Mechanics
Abstract
We study inelastic cotunneling through a strong Coulomb-blockaded quantum dot subject to a static magnetic field and a perpendicular circularly-polarized magnetic field using a quantum Langevin equation approach. Our calculation predicts an interesting controllable cotunneling current characteristic, splitting--zero-anomaly--splitting transition of the differential conductance with increasing the driving frequency, ascribing to the role of {\em photon-assisted spin-flip} cotunneling processes.
Cite
@article{arxiv.cond-mat/0611573,
title = {Controlling inelastic cotunneling through an interacting quantum dot by a circularly-polarized field},
author = {Bing Dong and X. L. Lei},
journal= {arXiv preprint arXiv:cond-mat/0611573},
year = {2009}
}
Comments
5 pages, 3 figures, published version in Phys. Rev. B