Dynamic tunneling magnetoresistance in quantum dot system under the perturbation of phonon

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Zhao, Lili^1 ; Liu, Ying^1 ; Liu, Chun Mei^1 ; Yang, Rui^1

Department of Fundamental Courses, Army Academy of Armored Force, Beijing

100072, China^1

关键词: A-center;    Dynamic tunneling;    Ferromagnets;    Keldysh Green's function;    Non equilibrium;    Phonon baths;    Quantum dot systems;    Tunneling magnetoresistance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/2/022026/pdf
DOI  :  10.1088/1757-899X/490/2/022026

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

We theoretically investigate the tunneling magnetoresistance(TMR) effect in a center quantum dot (QD) connected simultaneously to two Ferromagnets and a local phonon bath. By using the nonequilibrium Keldysh Green's function technique, we obtain the formula of the TMR contained the effects of phonon. The linewidth function and angle θ influence the TMR curves significantly.