Spin and tunneling dynamics in an asymmetrical double quantum dot with spin-orbit coupling: Selective spin transport device

被引:8
|
作者
Singh, Madhav K. [1 ]
Jha, Pradeep K. [2 ]
Bhattacherjee, Aranya B. [3 ]
机构
[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India
[2] Univ Delhi, Dept Phys, DDU Coll, New Delhi, India
[3] Jawaharlal Nehru Univ, Sch Phys Sci, New Delhi 110067, India
关键词
COULOMB-BLOCKADE; ELECTRON-SPIN; MANIPULATION;
D O I
10.1063/1.4985797
中图分类号
O59 [应用物理学];
学科分类号
摘要
In this article, we study the spin and tunneling dynamics as a function of magnetic field in a one-dimensional GaAs double quantum dot with both the Dresselhaus and Rashba spin-orbit coupling. In particular, we consider different spatial widths for the spin-up and spin-down electronic states. We find that the spin dynamics is a superposition of slow as well as fast Rabi oscillations. It is found that the Rashba interaction strength as well as the external magnetic field strongly modifies the slow Rabi oscillations which is particularly useful for implementing solid state selective spin transport device. Published by AIP Publishing.
引用
收藏
页数:9
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