Dirnaichner, A. and del Valle, M. and Goetz, K. J. G. and Schupp, F. J. and Paradiso, N. and Grifoni, M. and Strunk, Ch. and Huettel, A. K. (2016) Secondary Electron Interference from Trigonal Warping in Clean Carbon Nanotubes. PHYSICAL REVIEW LETTERS, 117 (16): 166804. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
We investigate Fabry-Perot interference in an ultraclean carbon nanotube resonator. The conductance shows a clear superstructure superimposed onto conventional Fabry-Perot oscillations. A sliding average over the fast oscillations reveals a characteristic slow modulation of the conductance as a function of the gate voltage. We identify the origin of this secondary interference in intervalley and intravalley backscattering processes which involve wave vectors of different magnitude, reflecting the trigonal warping of the Dirac cones. As a consequence, the analysis of the secondary interference pattern allows us to estimate the chiral angle of the carbon nanotube.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FABRY-PEROT INTERFERENCE; RESONATORS; SPIN; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Apr 2019 10:44 |
| Last Modified: | 24 Apr 2019 10:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/4104 |
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