SPIN POLARIZATION OF ELECTRONS BY DEPOSITING HYBRID FERROMAGNETIC STRIPES ON A SEMICONDUCTOR HETEROSTRUCTURE

Mao-Wang Lu
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Mao-Wang Lu: Department of Physics, Lingling University, Hunan 425006, People's Republic of China

Surface Review and Letters (SRL), 2004, vol. 11, issue 03, 331-335

Abstract: One type of combined magnetically modulated nanostructures is proposed that can be experimentally realized by depositing two hybrid ferromagnetic stripes on the surface of a semiconductor heterostructure. Since these two stripes induce different magnetic barriers, the electron transmission and the conductance of nanostructure are strongly dependent upon the electronic spins. Thus, in this kind of hybrid magnetic nanostructures, electrons show up a considerable spin polarization effect, which provides an alternative approach to realization of spin-polarized electrons into semiconductors and may be of practical importance for spin-based nanodevice applications.

Keywords: Magnetic nanostructure; tunneling transport; spin filtering; spin polarization (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1142/S0218625X04006220

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