中国物理B ›› 2009, Vol. 18 ›› Issue (2): 783-789.doi: 10.1088/1674-1056/18/2/062
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
侯涛, 吴绍全, 毕爱华, 羊富彬, 陈嘉峰, 樊梦
Hou Tao(侯涛)†, Wu Shao-Quan(吴绍全), Bi Ai-Hua(毕爱华), Yang Fu-Bin(羊富彬), Chen Jia-Feng(陈嘉峰), and Fan Meng(樊梦)
摘要: Using an equation-of-motion technique, we theoretically study the Fano--Kondo 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 with both parallel and antiparallel lead-polarization alignments, and our results reveal that the interdot coupling, the spin-polarized strength and the energy level of the side coupled quantum dot greatly influence the density of states of the central quantum dot. This system is a possible candidate for spin valve transistors and may have potential applications in the spintronics.
中图分类号: (Quantum dots)