| AVS 58th Annual International Symposium and Exhibition | |
| Electron Transport in Low Dimensional Materials Focus Topic | Monday Sessions |
| Session ET+EM+SS-MoM |
| Session: | Quantum Transport: From 0- to 2-Dimensions |
| Presenter: | Xiaoguang Zhang, Oak Ridge National Laboratory |
| Authors: | X.-G. Zhang, Oak Ridge National Laboratory T. Xiang, Chinese Academy of Sciences |
| Correspondent: | Click to Email |
We propose a Hubbard model to describe the tunneling effect of electrons in a double quantum dot system connected in the parallel circuit configuration to electrodes. The change in the interdot coupling is shown to dramatically influence the Coulomb blockade properties. For magnetic double dots, the interdot coupling can be tuned by the external magnetic field, leading to a giant Coulomb blockade magnetoresistance. Possible detection of this effect in organic systems is discussed.
This research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Office of Basic Energy Sciences, U.S. Department of Energy.