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Title
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Modeling surface roughness scattering in metallic nanowires
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Author
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Abstract
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| Ando's model provides a rigorous quantum-mechanical framework for electron-surface roughness scattering, based on the detailed roughness structure. We apply this method to metallic nanowires and improve the model introducing surface roughness distribution functions on a finite domain with analytical expressions for the average surface roughness matrix elements. This approach is valid for any roughness size and extends beyond the commonly used Prange-Nee approximation. The resistivity scaling is obtained from the self-consistent relaxation time solution of the Boltzmann transport equation and is compared to Prange-Nee's approach and other known methods. The results show that a substantial drop in resistivity can be obtained for certain diameters by achieving a large momentum gap between Fermi level states with positive and negative momentum in the transport direction. (C) 2015 AIP Publishing LLC. |
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Language
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English
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Source (journal)
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Journal of applied physics / American Institute of Physics. - New York, N.Y., 1937, currens
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Publication
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New York, N.Y.
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American Institute of Physics
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2015
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ISSN
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0021-8979
[print]
1089-7550
[online]
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DOI
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10.1063/1.4931573
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Volume/pages
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118
:12
(2015)
, 11 p.
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Article Reference
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124307
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ISI
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000362565800032
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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