Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.1994628
Title: High spin filtering under the influence of in-plane magneto-electric field and spin orbit coupling
Authors: Tan, S.G.
Jalil, M.B.A. 
Teo, K.L. 
Liew, T.
Chong, T.C.
Issue Date: 30-Jun-2005
Source: Tan, S.G.,Jalil, M.B.A.,Teo, K.L.,Liew, T.,Chong, T.C. (2005-06-30). High spin filtering under the influence of in-plane magneto-electric field and spin orbit coupling. AIP Conference Proceedings 772 : 1381-1382. ScholarBank@NUS Repository. https://doi.org/10.1063/1.1994628
Abstract: Periodic delta magnetic barriers are applied in the plane of a III-V semiconductor 2DEG across the electron conduction path of a HEMT device. Because of structural inversion asymmetry in the 2DEG, electron spin is coupled to both the crystal field and the in-plane magnetic field, producing highly spin-polarized current in the device. To maximize spin polarization P, an array of repeating zero-gauge type of magneto-electric barriers is used. Our calculation for electron transmission T for 10 repeating barrier units shows resonant-like peaks for different electron spin, resulting in ideal P of 100% over a wide energy range of 0.5-0.9 E F. It was also found that a perpendicular E field can also modulate P in the 2DEG channel. © 2005 American Institute of Physics.
Source Title: AIP Conference Proceedings
URI: http://scholarbank.nus.edu.sg/handle/10635/83792
ISBN: 0735402574
ISSN: 0094243X
DOI: 10.1063/1.1994628
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