Symmetry-Dependent Dielectric Screening of Optical Phonons in Monolayer Graphene

Symmetry-Dependent Dielectric Screening of Optical Phonons in Monolayer Graphene

Quantized lattice vibrations (i.e., phonons) in solids are robust and unambiguous fingerprints of crystal structures and of their symmetry properties. In metals and semimetals, strong electron-phonon coupling may lead to so-called Kohn anomalies in the phonon dispersion, providing an image of the Fe...

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Main Authors: Loïc Moczko, Sven Reichardt, Aditya Singh, Xin Zhang, Elise Jouaiti, Luis E. Parra López, Joanna L. P. Wolff, Aditi Raman Moghe, Etienne Lorchat, Rajendra Singh, Kenji Watanabe, Takashi Taniguchi, Hicham Majjad, Michelangelo Romeo, Arnaud Gloppe, Ludger Wirtz, Stéphane Berciaud
Format: Article
Language:English
Published: American Physical Society 2025-05-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.15.021043
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