Quantum pumps formed of double walled carbon nanotubes

Zolyomi, V. and Oroszlany, L. and Lambert, C. J. (2009) Quantum pumps formed of double walled carbon nanotubes. physica status solidi (b), 246 (11-12). pp. 2650-2653. ISSN 0370-1972

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Using the Brouwer formula, we employ Green's function technique to study charge pumping in shuttle geometry double walled carbon nanotubes. We find strong chirality dependence, and that there is virtually no pumping if the chiral angle of the two walls is the same. We discuss which are the optimal chiralities that can be used for such quantum pumps. Furthermore, we argue that charge pumping with double walled tubes can be used to probe the strength of the inter-layer coupling between the inner and outer nanotube.

Item Type:
Journal Article
Journal or Publication Title:
physica status solidi (b)
Additional Information:
23rd Winterschool on Electronic Properties of Novel Materials, Kirchberg, GERMANY, MAR 14, 2009
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Deposited On:
16 Jul 2012 08:58
Last Modified:
01 Jan 2022 10:39