Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4863088
Title: Y-shape spin-separator for two-dimensional group-IV nanoribbons based on quantum spin hall effect
Authors: Gupta, G.
Lin, H.
Bansil, A.
Abdul Jalil, M.B. 
Huang, C.-Y.
Tsai, W.-F.
Liang, G. 
Issue Date: 20-Jan-2014
Citation: Gupta, G., Lin, H., Bansil, A., Abdul Jalil, M.B., Huang, C.-Y., Tsai, W.-F., Liang, G. (2014-01-20). Y-shape spin-separator for two-dimensional group-IV nanoribbons based on quantum spin hall effect. Applied Physics Letters 104 (3) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4863088
Abstract: An efficient spin-separator that operates in quantum spin hall phase has been investigated for two-dimensional group-IV materials. A three-terminal Y-shaped device has been simulated via non-equilibrium Green Function to demonstrate the separation of unpolarized current at source terminal into spin-polarized current of opposite polarity at the two drain terminals. Device controls, i.e., tunable buckling and perpendicular magnetic field have been modeled comprehensively to evaluate the device feasibility and performance. It is shown that these controls can preferentially steer current between the two drains to create a differential charge current with complementary spin polarization, thus enabling a convenient regulation of output signal. © 2014 AIP Publishing LLC.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/83282
ISSN: 00036951
DOI: 10.1063/1.4863088
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