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65. 


Contact dependence of carrier injection in carbon nanotubes: An ab initio study



N. Nemec, D. Tomanek, and G. Cuniberti

Physical Review Letters 96, 076802 (2006)

Selected for the March 06, 2006 issue of the
Virtual Journal of Nanoscale Science & Technology
.

We combine ab initio density functional theory with transport calculations to provide a microscopic basis for distinguishing between `good' and `poor' metal contacts to nanotubes. Comparing Ti and Pd as examples of different contact metals, we trace back the observed superiority of Pd to the nature of the metal-nanotube hybridization. Based on large scale Landauer transport calculations, we suggest that the `optimum' metal-nanotube contact combines a weak hybridization with a large contact length between the metal and the nanotube.



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doi absolute link10.1103/PhysRevLett.96.076802
online abstract at the publisher site
publisher site (ISSN:1079-7114)
online abstractarXiv preprint: cond-mat/0512396
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seleceted abstractVJ Nanoscale Science & Technology entry
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IF(2005): 7.489


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