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Charge pumping in carbon nanotubes
We demonstrate charge pumping in semiconducting carbon nanotubes by a traveling potential wave. From the observation of pumping in the nanotube insulating state we deduce that transport occurs by packets of charge being carried along by the wave. By tuning the potential of a side gate, transport of...
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Published in: | Physical review letters 2005-12, Vol.95 (25), p.256802.1-256802.4, Article 256802 |
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Main Authors: | , , , , , , , |
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container_end_page | 256802.4 |
container_issue | 25 |
container_start_page | 256802.1 |
container_title | Physical review letters |
container_volume | 95 |
creator | LEEK, P. J BUITELAAR, M. R TALYANSKII, V. I SMITH, C. G ANDERSON, D JONES, G. A. C WEI, J COBDEN, D. H |
description | We demonstrate charge pumping in semiconducting carbon nanotubes by a traveling potential wave. From the observation of pumping in the nanotube insulating state we deduce that transport occurs by packets of charge being carried along by the wave. By tuning the potential of a side gate, transport of either electron or hole packets can be realized. Prospects for the realization of nanotube based single-electron pumps are discussed. |
doi_str_mv | 10.1103/PhysRevLett.95.256802 |
format | article |
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subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronic transport in multilayers, nanoscale materials and structures Exact sciences and technology Physics Quantum dots |
title | Charge pumping in carbon nanotubes |
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