Tunneling resonances in quantum dots: Coulomb interaction modifies the width
Mesoscale and Nanoscale Physics
2012-07-25 v1
Abstract
Single-electron tunneling through a zero-dimensional state in an asymmetric double-barrier resonant-tunneling structure is studied. The broadening of steps in the -- characteristics is found to strongly depend on the polarity of the applied bias voltage. Based on a qualitative picture for the finite-life-time broadening of the quantum dot states and a quantitative comparison of the experimental data with a non-equilibrium transport theory, we identify this polarity dependence as a clear signature of Coulomb interaction.
Cite
@article{arxiv.cond-mat/0506505,
title = {Tunneling resonances in quantum dots: Coulomb interaction modifies the width},
author = {J. Könemann and B. Kubala and J. König and R. J. Haug},
journal= {arXiv preprint arXiv:cond-mat/0506505},
year = {2012}
}
Comments
4 pages, 4 figures