Nagler, Philipp and Ballottin, Mariana V. and Mitioglu, Anatolie A. and Durnev, Mikhail V. and Taniguchi, Takashi and Watanabe, Kenji and Chernikov, Alexey and Schueller, Christian and Glazov, Mikhail M. and Christianen, Peter C. M. and Korn, Tobias (2018) Zeeman Splitting and Inverted Polarization of Biexciton Emission in Monolayer WS2. PHYSICAL REVIEW LETTERS, 121 (5): 057402. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
Atomically thin semiconductors provide an ideal testbed to investigate the physics of Coulomb-bound many-body states. We shed light on the intricate structure of such complexes by studying the magnetic-field-induced splitting of biexcitons in monolayer WS2 using polarization-resolved photoluminescence spectroscopy in out-of-plane magnetic fields up to 30 T. The observed g factor of the biexciton amounts to about -3.9, closely matching the g factor of the neutral exciton. The biexciton emission shows an inverted circular field-induced polarization upon linearly polarized excitation; i.e., it exhibits preferential emission from the high-energy peak in a magnetic field. This phenomenon is explained by taking into account the hybrid configuration of the biexciton constituents in momentum space and their respective energetic behavior in magnetic fields. Our findings reveal the critical role of dark excitons in the composition of this many-body state.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TEMPERATURE-DEPENDENCE; LAYER; WSE2; |
| 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: | 09 Mar 2020 15:10 |
| Last Modified: | 09 Mar 2020 15:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14068 |
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