Chorley, SJ;
Galpin, MR;
Jayatilaka, FW;
Smith, CG;
Logan, DE;
Buitelaar, MR;
(2012)
Tunable Kondo physics in a carbon nanotube double quantum dot.
Physical Review Letters
, 109
(15)
, Article 156804. 10.1103/PhysRevLett.109.156804.
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Abstract
We investigate a tunable two-impurity Kondo system in a strongly correlated carbon nanotube double quantum dot, accessing the full range of charge regimes. In the regime where both dots contain an unpaired electron, the system approaches the two-impurity Kondo model. At zero magnetic field the interdot coupling disrupts the Kondo physics and a local singlet state arises, but we are able to tune the crossover to a Kondo screened phase by application of a magnetic field. All results show good agreement with a numerical renormalization group study of the device.
| Type: | Article |
|---|---|
| Title: | Tunable Kondo physics in a carbon nanotube double quantum dot. |
| Location: | US |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.109.156804 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.109.156804 |
| Language: | English |
| Additional information: | © 2012 American Physical Society |
| UCL classification: | UCL 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/1366976 |
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