| Autor: |
Chorley, S. J., Galpin, M. R., Jayatilaka, F. W., Smith, C. G., Logan, D. E., Buitelaar, M. R. |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Lett. 109, 156804 (2012) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.109.156804 |
| Popis: |
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. |
| Databáze: |
arXiv |
| Externí odkaz: |
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