Monolayer transition metal dichalcogenides in strong magnetic fields: Validating the Wannier model using a microscopic calculation

Jonas Have, G. Catarina, Thomas Garm Pedersen, N.M.R. Peres

Research output: Contribution to journalJournal articleResearchpeer-review

6 Citations (Scopus)
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Abstract

Using an equation of motion (EOM) approach, we calculate excitonic properties of monolayer transition metal dichalcogenides perturbed by an external magnetic field. We compare our findings to the widely used Wannier model for excitons in two-dimensional materials and to recent experimental results. We find good agreement between the calculated excitonic transition energies and the experimental results. In addition, we find that the exciton energies calculated using the EOM approach are slightly lower than the ones calculated using the Wannier model. Finally, we also show that the effect of the dielectric environment on the magnetoexciton transition energy is minimal due to counteracting changes in the exciton energy and the exchange self-energy correction.

Original languageEnglish
Article number035416
JournalPhysical Review B
Volume99
Issue number3
Number of pages13
ISSN2469-9950
DOIs
Publication statusPublished - 9 Jan 2019

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