Monch, E. and Potashin, S. O. and Lindner, K. and Yahniuk, I. and Golub, L. E. and Kachorovskii, V. Yu. and V. Bel'kov, V. and Huber, R. and Watanabe, K. and Taniguchi, T. and Eroms, J. and Weiss, D. and Ganichev, S. D. (2023) Cyclotron and magnetoplasmon resonances in bilayer graphene ratchets. PHYSICAL REVIEW B, 107 (11): 115408. ISSN 2469-9950, 2469-9969
Full text not available from this repository.Abstract
We report on a tunable-by magnetic field and gate voltage-conversion of terahertz radiation into a dc current in spatially modulated bilayer graphene. We experimentally demonstrate that the underlying physics is related to the so-called ratchet effect. Our key findings are the direct observation of a sharp cyclotron resonance in the photocurrent and the demonstration of two effects caused by electron-electron interaction: the plasmonic splitting of the resonance due to long-range Coulomb coupling and the partial suppression of its second harmonic due to fast interparticle collisions. We develop a theory, which perfectly fits our data. We argue that the ratchet current is generated in the hydrodynamic regime of nonideal electron liquid.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TERAHERTZ-RADIATION; DEEP IMPURITIES; SEMICONDUCTORS; RECTIFICATION; TRANSPORT; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Mar 2024 11:37 |
| Last Modified: | 12 Mar 2024 11:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/59798 |
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