Signatures of Quantum Transport Through Two-Dimensional Structures With Correlated and Anti-Correlated Interfaces

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dc.creatorLow, Tony
dc.creatorAnsari, Davood
dc.date2008-06-02
dc.date2008-09-12
dc.date.accessioned2026-07-07T12:09:29Z
dc.date.available2026-07-07T12:09:29Z
dc.descriptionElectronic transport through a 2D deca-nanometer length channel with correlated and anti-correlated surfaces morphologies is studied using the Keldysh non-equilibrium Green function technique. Due to the pseudo-periodicity of these structures, the energy-resolved transmission possesses pseudo-bands and pseudo-gaps. Channels with correlated surfaces exhibit wider pseudo-bands than their anti-correlated counterparts. By surveying channels with various combinations of material parameters, we found that a smaller transport mass increases the channel transmittivity and energy bandwidth of the pseudo-bands. A larger quantization mass yields a larger transmittivity in channels with anti-correlated surfaces. For channels with correlated surfaces, the dependence of transmittivity on quantization mass is complicated by odd-to-even mode transitions. An enhanced threshold energy in the energy-resolved transmission can also be observed in the presence of surface roughness. The computed enhanced threshold energy was able to achieve agreement with the experimental data for Si[110] and Si[100] devices.
dc.description9 pages, 10 figures, To be Published in Physical Review B
dc.identifierhttps://arxiv.org/abs/0806.0404
dc.identifierhttp://arxiv.org/abs/0806.0404
dc.identifierPhys. Rev. B 78, 165301 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.165301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/209643
dc.subjectMesoscale and Nanoscale Physics
dc.titleSignatures of Quantum Transport Through Two-Dimensional Structures With Correlated and Anti-Correlated Interfaces
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