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


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