Journal
ORGANIC ELECTRONICS
Volume 41, Issue -, Pages 333-339Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2016.11.025
Keywords
First-principles calculation; Silicene nanoribbons; Edge hydrogenated; Negative differential resistance; Spin filtering behavior; Rectifier effect
Funding
- Natural Science Foundations of China [11574118, 11374183, 21473102, 11404141, 11404188]
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Using nonequilibrium Green's function in combination with the density functional theory, we investigate the spin-dependent transport properties of different edge hydrogenated zigzag silicene nanoribbon (ZSiNR) heterojunctions. The results show that H-6ZSiNR-H/H-0-6ZSiNR-H-0(M1) and H-6ZSiNR-H/H-2-6ZSiNR-H-2 (M2) devices can exhibit spin filtering effect, negative differential resistance behavior, and rectifier effect when the two electrodes are aligned in spin antiparallel configuration. By analyzing the spin-resolved transmission spectra, the spatial resolved local density of states (LDOS), and the spatial resolved transmission eigenstates, as well as the band structure and symmetry of ZSiNR electrodes, we explained the mechanism for these intriguing properties. (C) 2016 Elsevier B.V. All rights reserved.
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