Schmidt, Robert and Arora, Ashish and Plechinger, Gerd and Nagler, Philipp and del Aguila, Andres Granados and Ballottin, Mariana V. and Christianen, Peter C. M. and de Vasconcellos, Steffen Michaelis and Schueller, Christian and Korn, Tobias and Bratschitsch, Rudolf (2016) Magnetic-Field-Induced Rotation of Polarized Light Emission from Monolayer WS2. PHYSICAL REVIEW LETTERS, 117 (7): 077402. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
We control the linear polarization of emission from the coherently emitting K+ and K- valleys (valley coherence) in monolayer WS2 with an out-of-plane magnetic field of up to 25 T. The magnetic-field-induced valley Zeeman splitting causes a rotation of the emission polarization with respect to the excitation by up to 35 degrees and reduces the polarization degree by up to 16%. We explain both of these phenomena with a model based on two noninteracting coherent two-level systems. We deduce that the coherent light emission from the valleys decays with a time constant of tau(c) = 260 fs.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION-METAL DICHALCOGENIDES; ATOMICALLY THIN SEMICONDUCTOR; VALLEY POLARIZATION; WSE2; MOS2; EXCITONS; LAYER; PHOTOLUMINESCENCE; OPTOELECTRONICS; COHERENCE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group Christian Schüller |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Apr 2019 06:08 |
| Last Modified: | 08 Apr 2019 06:08 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3485 |
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