Spin Polarized Transport in an AC-Driven Quantum Curved Nanowire. (21st June 2011)

• Record Type: Journal Article
• Authors: Zein, Walid A.; Ibrahim, Nabil A.; Phillips, Adel H.
• Other Names: Sullivan Neil Academic Editor.
• Is Part Of: Physics research international. Volume 2011(2011)
• Publication Date: 2011-06-21
• Subjects: Physics -- Periodicals; Physics; Periodicals; Electronic journals; 530
• DOI: 10.1155/2011/505091
• Languages: English
• ISSNs: 2090-2220

Abstract

Abstract : Using the effective-mass approximation method, and Floquet theory, we study the spin transport characteristics through a curved quantum nanowire. The spin polarization, P, and the tunneling magnetoresistance, TMR, are deduced under the effect of microwave and infrared radiations of wide range of frequencies. The results show an oscillatory behavior of both the spin polarization and the tunneling magnetoresistance. This is due to Fano-type resonance and the interplay between the strength of spin-orbit coupling and the photons in the subbands of the one-dimensional nanowire. The present results show that this investigation is very important, and the present device might be used to be a sensor for small strain in semiconductor nanostructures and photodetector.