Spin-dependent transport in Normal/Ferromagnetic/Normal monolayer zigzag molybdenum disulfide nanoribbon junction

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Jin, Jing-Jing^1 ; Hao, Xiao-Juan^1 ; Yang, Qi-Juan^1 ; Yuan, Rui-Yang^1

Center for Theoretical Physics, Department of Physics, Capital Normal University, Beijing

100048, China^1

关键词: Effect of magnetic field;    Electric field modulation;    Green's function technique;    Low energy regions;    Molybdenum disulfide;    Spin conductances;    Spin dependent transport;    Tight binding model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/2/022013/pdf
DOI  :  10.1088/1757-899X/563/2/022013

来源: IOP

【 摘 要 】

In this paper, with the three-band tight-binding model, we investigate spin transport in Normal/Ferromagnetic/Normal monolayer zigzag molybdenum disulfide nanoribbon junction with double electric barriers using Green's function technique. We discuss the influence of the height of the double electric barrier on spin transport. The results demonstrate that spin conductance has relatively large dependence on electric field modulation. We can obtain large spin polarization in low energy region which may be applied as a spin filter. In addition, we study the effect of magnetic field, and we find that we can obtain a larger spin polarization area which may provide a theoretical basis for spin filter application.