標題: | Spin Bottleneck in Resonant Tunneling through Double Quantum Dots with Different Zeeman Splittings |
作者: | Huang, S. M. Tokura, Y. Akimoto, H. Kono, K. Lin, J. J. Tarucha, S. Ono, K. 物理研究所 Institute of Physics |
公開日期: | 2-四月-2010 |
摘要: | We investigated the electron transport property of the InGaAs/GaAs double quantum dots, the electron g factors of which are different from each other. We found that in a magnetic field, the resonant tunneling is suppressed even if one of the Zeeman sublevels is aligned. This is because the other misaligned Zeeman sublevels limit the total current. A finite broadening of the misaligned sublevel partially relieves this bottleneck effect, and the maximum current is reached when interdot detuning is half the Zeeman energy difference. |
URI: | http://dx.doi.org/10.1103/PhysRevLett.104.136801 http://hdl.handle.net/11536/5529 |
ISSN: | 0031-9007 |
DOI: | 10.1103/PhysRevLett.104.136801 |
期刊: | PHYSICAL REVIEW LETTERS |
Volume: | 104 |
Issue: | 13 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |