Lopez, Alexander and Berche, Bertrand and Schliemann, John and Mireles, Francisco and Santos, Benjamin (2019) Photoinduced polarization enhancement on biased bilayer graphene in the Landau level regime. JOURNAL OF PHYSICS-CONDENSED MATTER, 31 (49): 495703. ISSN 0953-8984, 1361-648X
Full text not available from this repository. (Request a copy)Abstract
We investigate the charge carrier dynamics in bilayer graphene subject to monochromatic laser irradiation within the Landau level quantization regime. Even though the radiation field does not lift the energy degeneracy of the lowest Landau levels (LLs), it nevertheless has a strong effect on the photoinduced pseudospin polarization response for higher LLs (n >= 2). Our results show that the photoinduced bandgaps lead to a finite response of the averaged pseudospin polarization with nontrivial oscillating behavior. It is shown that the contribution from these higher LL transitions turns out to be crucial to achieve an enhanced photoinduced polarization in radiated bilayer graphene. The experimental feasibility of our findings is also discussed.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM; TRANSPORT; DEFECTS; PHASE; LASER; graphene; polarization; Landau levels; Floquet |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Mar 2020 07:38 |
| Last Modified: | 20 Mar 2020 07:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/25682 |
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