Multichannel field-effect spin barrier selector
G. E. Marques, A. C. R. Bittencourt, C. F. Destefani, Sergio E. Ulloa
TL;DR
This paper investigates how spin-orbit coupling influences spin carrier dynamics and proposes a voltage-controlled multichannel spin-filter using anisotropic dispersion properties for selective spin polarization.
Contribution
It introduces a novel method for voltage-controlled spin filtering based on anisotropic dispersion in a resonant tunneling setup under full spin-orbit coupling.
Findings
Small voltage changes can select specific spin polarizations.
Anisotropic dispersion enables multichannel spin filtering.
Resonant tunneling enhances spin selectivity.
Abstract
We have studied spin carrier dynamics under full spin-orbit coupling. The anisotropy of dispersions for independent circular spinor polarizations is explored as a possible vertical multichannel voltage controlled spin-filter. Small voltage variations are found to select the current polarizations in a resonant tunneling geometry.
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Taxonomy
TopicsQuantum and electron transport phenomena · Molecular Junctions and Nanostructures · Diamond and Carbon-based Materials Research