Two-dimensional plasmonic polarons in n -doped monolayer MoS2

Fabio Caruso, Patrick Amsalem, Jie Ma, Areej Aljarb, Thorsten Schultz, Marios Zacharias, Vincent Tung, Norbert Koch, Claudia Draxl

Research output: Contribution to journalArticlepeer-review

Abstract

We report experimental and theoretical evidence of strong electron-plasmon interaction in n-doped singlelayer MoS2. Angle-resolved photoemission spectroscopy measurements reveal the emergence of distinctive signatures of polaronic coupling in the electron spectral function. Calculations based on many-body perturbation theory illustrate that electronic coupling to two-dimensional carrier plasmons provides an exhaustive explanation of the experimental spectral features and their energies. These results constitute compelling evidence of the formation of plasmon-induced polaronic quasiparticles, suggesting that highly doped transition-metal dichalcogenides may provide a new platform to explore strong-coupling phenomena between electrons and plasmons in two dimensions.
Original languageEnglish (US)
JournalPhysical Review B
Volume103
Issue number20
DOIs
StatePublished - May 27 2021

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