Gaass, Markus and Huettel, A. K. and Kang, K. and Weymann, I. and von Delft, J. and Strunk, Ch. (2011) Universality of the Kondo Effect in Quantum Dots with Ferromagnetic Leads. PHYSICAL REVIEW LETTERS, 107 (17): 176808. ISSN 0031-9007,
Full text not available from this repository. (Request a copy)Abstract
We investigate quantum dots in clean single- wall carbon nanotubes with ferromagnetic PdNi- leads in the Kondo regime. Most of the Kondo resonances exhibit a splitting, which depends on the tunnel coupling to the leads and an external magnetic field B, but only weakly on the gate voltage. Using numerical renormalization group calculations, we demonstrate that all salient features of the data can be understood using a simple model for the magnetic properties of the leads. The magnetoconductance at zero bias and low temperature depends in a universal way on g mu(B)(B-B(c))/k(B)T(K), where T(K) is the Kondo temperature and B(c) the external field compensating the splitting.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SINGLE-ELECTRON TRANSISTOR; CARBON NANOTUBES; CONTACTS; |
| 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: | 02 Jun 2020 05:10 |
| Last Modified: | 02 Jun 2020 05:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/19961 |
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