Spin manipulation in a double quantum-dot-quantum-wire coupled system

被引：1
|
作者：
Sasaki, S. [1 ]
Kang, S.
Kitagawa, K.
Yamaguchi, M.
Miyashita, S.
Maruyama, T.
Tamura, H.
Akazaki, T.
Hirayama, Y.
Takayanagi, H.
机构：
[1] NTT, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
[2] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan
[3] JST, CREST, Kawaguchi, Saitama 3310012, Japan
[4] Tokyo Univ Sci, Fac Sci, Tokyo 1628601, Japan
[5] NTT, Adv Technol Corp, Atsugi, Kanagawa 2430198, Japan
[6] JST, SORST, Kawaguchi, Saitama 3310012, Japan
来源：
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2006年 / 24卷 / 04期
基金：
日本学术振兴会;
关键词：
D O I：
10.1116/1.2218866
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have studied spin correlation in a double quantum-dot-quantum-wire coupled device revealed in low-temperature transport characteristics. We demonstrate nonlocal control of the Kondo effect in one dot by manipulating the spin states of the other. The modulation of the local density of states in the wire region due to the Fano-Kondo antiresonance and the Ruderman-Kittel-Kasuya-. Yoshida exchange interaction are the two possible mechanisms underlying the observed features. When the dot states are indirectly probed in the side-coupled geometry, double suppression of the wire conductance is observed due to the Fano-Kondo antiresonance involving both dots. (c) 2006 American Vacuum Society.
引用
收藏
页码：2024 / 2028
页数：5
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