A Tunable Kondo Effect in Quantum Dots
介观与纳米尺度物理
2009-10-31 v1
摘要
We demonstrate a tunable Kondo effect realized in small quantum dots. We can switch our dot from a Kondo impurity to a non-Kondo system as the number of electrons on the dot is changed from odd to even. We show that the Kondo temperature can be tuned by means of a gate voltage as a single-particle energy state nears the Fermi energy. Measurements of the temperature and magnetic field dependence of a Coulomb-blockaded dot show good agreement with predictions of both equilibrium and non-equilibrium Kondo effects.
引用
@article{arxiv.cond-mat/9804211,
title = {A Tunable Kondo Effect in Quantum Dots},
author = {Sara M. Cronenwett and Tjerk H. Oosterkamp and Leo P. Kouwenhoven},
journal= {arXiv preprint arXiv:cond-mat/9804211},
year = {2009}
}
备注
8 pages, 4 figures