Journal
PHYSICS LETTERS A
Volume 376, Issue 4, Pages 515-520Publisher
ELSEVIER
DOI: 10.1016/j.physleta.2011.10.049
Keywords
Electron transport; Electronic properties; Carbon nanoscroll
Categories
Funding
- National Science Council of Taiwan, the Republic of China [NSC 100-2112-M-168-001-MY3]
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The transport properties of carbon nanoscrolls in a uniform electric field are investigated by using the Landauer-Buttiker formula. The energy dispersions depend sensitively on the geometry and the field strength. The bandgaps may become zero and exhibit the semiconductor-metal transitions. Variations in the electronic structures with the geometry or the field strength are reflected in the conductance. The conductance exhibits a stepwise behavior, caused by the discrete number of quantized channels contributing to transport. The shoulders of the conductance are stretched out as temperature rises. (C) 2011 Elsevier B.V. All rights reserved.
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