Schmid, Daniel R. and Smirnov, Sergey and Marganska, Magdalena and Dirnaichner, Alois and Stiller, Peter L. and Grifoni, Milena and Huettel, Andreas K. and Strunk, Christoph (2015) Broken SU(4) symmetry in a Kondo-correlated carbon nanotube. PHYSICAL REVIEW B, 91 (15): 155435. ISSN 1098-0121, 1550-235X
Full text not available from this repository. (Request a copy)Abstract
Understanding the interplay between many-body phenomena and nonequilibrium in systems with entangled spin and orbital degrees of freedom is a central objective in nanoelectronics. We demonstrate that the combination of Coulomb interaction, spin-orbit coupling, and valley mixing results in a particular selection of the inelastic virtual processes contributing to the Kondo resonance in carbon nanotubes at low temperatures. This effect is dictated by conjugation properties of the underlying carbon nanotube spectrum at zero and finite magnetic field. Our measurements on a clean carbon nanotube are complemented by calculations based on a field-theoretical Keldysh approach to the nonequilibrium Kondo problem which well reproduces the rich experimental observations in Kondo transport.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SINGLE-ELECTRON TRANSISTOR; SPIN; TRANSPORT; ANDERSON; 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: | 22 Jul 2019 12:47 |
| Last Modified: | 22 Jul 2019 12:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5621 |
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