Skip to content

Controlling inelastic cotunneling through an interacting quantum dot by a circularly-polarized field

Bing Dong, X. L. Lei

cond-mat.mes-hallarXiv:cond-mat/0611573

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 photon-assisted spin-flip cotunneling processes.

Create a lesson