Spin Transport in a Rashba Ring-Quantum Dot System Pumped by Microwave Fields

• Published in: Communications in theoretical physics Vol. 55; no. 4; pp. 709 - 714
• Main Author: 张林 汪军
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.04.2011
• Subjects: Charge; Dynamical systems; Dynamics; Mathematical analysis; Microwaves; Phase shift; Pumping; Qunatum dots; Stability; 微波场; 极化电流; 格林函数方法; 泵送系统; 自旋电子学; 自旋相关; 量子点

We report a theoretical study on producing electrically spin-polarized current in the Rashba ring with parallel double dots embedded, which are subject to two time-dependent microwave fields. By means of the Keldysh Green＇s function method, we present an analytic result of the pumped current at adia...