Goetz, K. J. G. and Schmid, D. R. and Schupp, F. J. and Stiller, P. L. and Strunk, Ch. and Huettel, A. K. (2018) Nanomechanical Characterization of the Kondo Charge Dynamics in a Carbon Nanotube. PHYSICAL REVIEW LETTERS, 120 (24): 246802. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
Using the transversal vibration resonance of a suspended carbon nanotube as a charge detector for its embedded quantum dot, we investigate the case of strong Kondo correlations between a quantum dot and its leads. We demonstrate that even when large Kondo conductance is carried at odd electron number, the charging behavior remains similar between odd and even quantum dot occupations. While the Kondo conductance is caused by higher order processes, a sequential tunneling only model can describe the time-averaged charge. The gate potentials of the maximum current and fastest charge increase display a characteristic relative shift, which is suppressed at increased temperature. These observations agree very well with models for Kondo-correlated quantum dots.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SINGLE-ELECTRON TRANSISTOR; MECHANICAL RESONATORS; QUANTUM-DOT; COULOMB-BLOCKADE; TRANSPORT; MOTION; MODEL; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Mar 2020 09:58 |
| Last Modified: | 09 Mar 2020 09:58 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14401 |
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