Pauli blockade transport in the cotunneling regime through a double quantum dot

被引：0
|
作者：
Liu, H. W. [1 ,2 ,3 ]
Fujisawa, T. [1 ,4 ]
Hayashi, T. [1 ]
Hirayama, Y. [1 ,2 ]
机构：
[1] NTT Corp, NTT Basic Res Labs, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 2430198, Japan
[2] SORST JST, Kawaguchi, Saitama 3310012, Japan
[3] Jilin Univ, Inst Atomic & Mol Phys, Natl Lab Superhard Mat, Changchun 130012, Peoples R China
[4] Tokyo Inst Technol, Meguro ku, Tokyo 528551, Japan
来源：
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 11 | 2006年 / 3卷 / 11期
基金：
日本学术振兴会;
关键词：
D O I：
10.1002/pssc.200671532
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Pauli spin blockade in the cotunneling transport through an effective two-electron double quantum dot ((TM) 10 electrons in each dot) has been presented. In the cotunneling regime where the two-electron (1,1) and (0,2) states (ordered pairs denote the effective electron numbers in each dot) are far below the Fermi energy of the leads, we can concentrate on the two-electron tunnelling transitions and detect singlet-triplet splitting arising from the exchange interaction between the two electron spins with improved resolution. We discuss the cotunneling transport by considering the coherent and incoherent coupling between the dots in connection with the singlet-triplet splitting. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：3766 / +
页数：2
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