Journal
PHYSICAL REVIEW LETTERS
Volume 84, Issue 24, Pages 5604-5607Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.84.5604
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Individual single-walled carbon nanotubes (SWNT) exhibiting small band gaps on the order of 10 meV an observed for the first time in electron transport measurements. Transport through the valence or conduction band of a small-gap semiconducting SWNT (SGS-SWNT) can be tuned by a nearby gate voltage. Intrinsic electrical properties of the Ohmically contacted SGS-SWNT are elucidated. An SGS-SWNT exhibits metal- or semiconductorlike characteristics depending on the Fermi level position in the band structure.
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