Buitelaar, MR;
Kashcheyevs, V;
Leek, PJ;
Talyanskii, VI;
Smith, CG;
Anderson, D;
Jones, GA;
... Cobden, DH; + view all
(2008)
Adiabatic charge pumping in carbon nanotube quantum dots.
Phys Rev Lett
, 101
(12)
, Article 126803. 10.1103/PhysRevLett.101.126803.
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Abstract
We investigate charge pumping in carbon nanotube quantum dots driven by the electric field of a surface acoustic wave. We find that, at small driving amplitudes, the pumped current reverses polarity as the conductance is tuned through a Coulomb blockade peak using a gate electrode. We study the behavior as a function of wave amplitude, frequency, and direction and develop a model in which our results can be understood as resulting from adiabatic charge redistribution between the leads and quantum dots on the nanotube.
| Type: | Article |
|---|---|
| Title: | Adiabatic charge pumping in carbon nanotube quantum dots. |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.101.126803 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.101.126803 |
| Language: | English |
| Additional information: | © 2008 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1366978 |
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