Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/22969
Title: Two-dimensional plasmonic polarons in n-doped monolayer MoS2
Authors: Caruso, Fabio 
Amsalem, Patrick 
Ma, Jie 
Aljarb, Areej 
Schultz, Thorsten 
Zacharias, Marios 
Tung, Vincent 
Koch, Norbert 
Draxl, Claudia 
Major Field of Science: Engineering and Technology
Field Category: Materials Engineering
Keywords: Layered semiconductors;Molybdenum compounds;Monolayers;Perturbation techniques;Photoelectron spectroscopy;Plasmonics;Polarons;Transition metals
Issue Date: 27-May-2021
Source: Physical Review B, 2021, vol. 103, no. 20, articl. no. 205152
Volume: 103
Issue: 20
Journal: Physical Review B 
Abstract: We report experimental and theoretical evidence of strong electron-plasmon interaction in n-doped single-layer MoS2. Angle-resolved photoemission spectroscopy (ARPES) 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 (2D) 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 2D.
URI: https://hdl.handle.net/20.500.14279/22969
ISSN: 2469-9969
DOI: 10.1103/PhysRevB.103.205152
Rights: © American Physical Society
Type: Article
Affiliation : Christian-Albrecht University of Kiel 
Humboldt-Universitat zu Berlin 
King Abdullah University of Science and Technology 
Helmholtz‐Zentrum Berlin für Materialien und Energie GmbH 
Cyprus University of Technology 
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