Direkt zum Inhalt

Nagler, Philipp ; Ballottin, Mariana V. ; Mitioglu, Anatolie A. ; Durnev, Mikhail V. ; Taniguchi, Takashi ; Watanabe, Kenji ; Chernikov, Alexey ; Schüller, Christian ; Glazov, Mikhail M. ; Christianen, Peter C. M. ; Korn, Tobias

Zeeman Splitting and Inverted Polarization of Biexciton Emission in Monolayer WS2

Nagler, Philipp, Ballottin, Mariana V., Mitioglu, Anatolie A., Durnev, Mikhail V., Taniguchi, Takashi, Watanabe, Kenji, Chernikov, Alexey, Schüller, Christian, Glazov, Mikhail M. , Christianen, Peter C. M. and Korn, Tobias (2018) Zeeman Splitting and Inverted Polarization of Biexciton Emission in Monolayer WS2. Physical Review Letters 121, 057402.

Date of publication of this fulltext: 27 Mar 2019 09:23
Article
DOI to cite this document: 10.5283/epub.39849


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 ...

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.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitlePhysical Review Letters
Publisher:AMER PHYSICAL SOC
Place of Publication:COLLEGE PK
Volume:121
Page Range:057402
Date2018
InstitutionsPhysics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group Christian Schüller
Identification Number
ValueType
10.1103/PhysRevLett.121.057402DOI
KeywordsTEMPERATURE-DEPENDENCE; LAYER; WSE2;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-398492
Item ID39849

Export bibliographical data

Owner only: item control page

nach oben