Year: 2010
Type: article
Abstract: Using an equation of motion technique, we report on a theoretical analysis of transport characteristics of a spin-valve system formed by a quantum dot coupled to ferromagnetic leads, whose magnetic moments are oriented at an angle θ with respect to each other, and a mesoscopic ring by the Anderson Hamiltonian. We analyse the density of states of this system, and our results reveal that the density of states show some noticeable characteristics depending on the relative angle θ of magnetic moment M , and the spin-polarised strength P in ferromagnetic leads, and also the magnetic flux Φ and the number of lattice sites N R in the mesoscopic ring. These effects might have some potential applications in spintronics.
Source: Chinese Physics B
Authors: Huang Rui, Wu Shao-Quan, Yan Cong-Hua
Institutions: Southwest Petroleum University, Sichuan Normal University
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2017309808