Kondo-Fano Effect in T-shaped Double Quantum Dots Coupled to Ferromagnetic Leads

• 作者: 侯涛 吴绍全 黄睿
• 来源期刊: 理论物理通讯：英文版
• 学科: 工学
• 关键词: 耦合量子点 双量子点 铁磁电极 T形 运动方程 函数计算 态密度 哈密顿
• 年，卷（期）: 2012,（1）
• 页码范围: 161-165
• 页数: 5页
• 分类号: O316|TB383
• 语种: 英文

摘要

Using an equation-of-motion technique, we theoretically study the Kondo-Fano effect in the T-shaped double quantum dots coupled to two ferromagnetic leads by the Anderson Hamiltonian. We calculate the density of states in this system by solving Green function. Our results reveal that the density of states show some noticeable characteristics not only depending upon the interdot coupling tab, the energy level eal of the side coupled quantum dot QDb, and the relative angle θ of magnetic moment M, but also the asymmetry parameter a in ferromagnetic leads and so on. All these parameters greatly influence the density of states of the eentral quantum dot QDa. This system is a possible candidate for spin valve transistors and may have potential applications in the spintronies.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	吴绍全		30	53	4.0	5.0
2	黄睿		3	3	1.0	1.0
3	侯涛		2	4	1.0	2.0