Ryndyk, Dmitry A. and Bundesmann, Jan and Liu, Ming-Hao and Richter, Klaus (2012) Edge state effects in junctions with graphene electrodes. PHYSICAL REVIEW B, 86 (19): 195425. ISSN 2469-9950, 2469-9969
Full text not available from this repository.Abstract
We consider plane junctions with graphene electrodes, which are formed by a single-level system ("molecule") placed between the edges of two single-layer graphene half planes. We calculate the edge Green functions of the electrodes and the corresponding lead self-energies for the molecular levels in the cases of semi-infinite single-layer electrodes with armchair and zigzag edges. We show two main effects: first, a peculiar energy-dependent level broadening, reflecting at low energies the linear energy dependence of the bulk density of states in graphene, and, second, the shift and splitting of the molecular level energy, especially pronounced in the case of the zigzag edges due to the influence of the edge states. These effects give rise to peculiar conductance features at finite bias and gate voltages.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSPORT; GRAPHITE; ZIGZAG; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 May 2020 06:48 |
| Last Modified: | 04 May 2020 06:48 |
| URI: | https://pred.uni-regensburg.de/id/eprint/17767 |
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