Controlling inelastic cotunneling through an interacting quantum dot by a circularly polarized field

被引：0
|
作者：
Dong, Bing [1 ]
Lei, X. L. [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200030, Peoples R China
来源：
PHYSICAL REVIEW B | 2007年 / 75卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.75.075310
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study inelastic cotunneling through a strong Coulomb-blockaded quantum dot subject to a static magnetic field and a perpendicular circularly polarized magnetic field using a quantum Langevin equation approach. Our calculation predicts an interesting controllable cotunneling current characteristic, namely splitting-zero-anomaly-splitting transition of the differential conductance with increasing driving frequency, ascribed to the role of photon-assisted spin-flip cotunneling processes.
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页数：5
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