Journal
PHYSICAL REVIEW B
Volume 92, Issue 16, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.92.161404
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Funding
- National Science Foundation [DGE-11-44155]
- Princeton Center for Theoretical Science
- US DOE Office of Science User Facility, at Brookhaven National Laboratory [de-sc0012704]
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Ground-state diffusion MonteCarlo is used to investigate the binding energies and intercarrier radial probability distributions of excitons, trions, and biexcitons in a variety of two-dimensional transition-metal dichalcogenide materials. We compare these results to approximate variational calculations, as well as to analogous Monte Carlo calculations performed with simplified carrier interaction potentials. Our results highlight the successes and failures of approximate approaches as well as the physical features that determine the stability of small carrier complexes in monolayer transition-metal dichalcogenide materials. Lastly, we discuss points of agreement and disagreement with recent experiments.
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