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Journal of Nanophotonics

Scattering effects in resonant magnetotunneling in InAs-based heterostructures
Author(s): Goran Isic; Dragan Indjin; Vitomir Milanovic; Jelena V. Radovanovic; Zoran Ikonic; Paul Harrison
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Paper Abstract

Electron transport through an InGaAs resonant tunneling structure with Rashba spin-orbit interaction and magnetic field parallel to the growth direction was studied theoretically. A nonequilibrium Green's function model was used, wherein interface roughness and longitudinal optical phonon scattering are treated in the self-consistent first Born approximation. The model predicts the main features of the two-dimensional magnetopolaron density of states and the secondary peaks in the I-V curve due to both resonant elastic and inelastic scattering. The I-V curves were studied at magnetic fields around the magnetophonon resonance and the elastic and inelastic contributions identified. At these fields (5 to 7 T), the current spin polarization was found to be dominated by the Zeeman effect and significant even in the presence of scattering events.

Paper Details

Date Published: 1 January 2011
PDF: 13 pages
J. Nanophoton. 5(1) 051819 doi: 10.1117/1.3611018
Published in: Journal of Nanophotonics Volume 5, Issue 1
Show Author Affiliations
Goran Isic, Univ. of Leeds (United Kingdom)
Dragan Indjin, Univ. of Leeds (United Kingdom)
Vitomir Milanovic, Univ. of Belgrade (Serbia)
Jelena V. Radovanovic, Univ. of Belgrade (Serbia)
Zoran Ikonic, Univ. of Leeds (United Kingdom)
Paul Harrison, Univ. of Leeds (United Kingdom)

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