Intervalley scattering by acoustic phonons in two-dimensional MoS2 revealed by double-resonance Raman spectroscopy

Bruno R. Carvalho; Yuanxi Wang; Sandro Mignuzzi; Debdulal Roy; Mauricio Terrones; Cristiano Fantini; Vincent H. Crespi; Leandro M. Malard; Marcos A. Pimenta

doi:10.1038/ncomms14670

Nature Communications (Mar 2017)

Intervalley scattering by acoustic phonons in two-dimensional MoS2 revealed by double-resonance Raman spectroscopy

Bruno R. Carvalho,
Yuanxi Wang,
Sandro Mignuzzi,
Debdulal Roy,
Mauricio Terrones,
Cristiano Fantini,
Vincent H. Crespi,
Leandro M. Malard,
Marcos A. Pimenta

Affiliations

Bruno R. Carvalho: Departamento de Física, Universidade Federal de Minas Gerais
Yuanxi Wang: Department of Physics and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University
Sandro Mignuzzi: National Physical Laboratory
Debdulal Roy: National Physical Laboratory
Mauricio Terrones: Department of Physics and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University
Cristiano Fantini: Departamento de Física, Universidade Federal de Minas Gerais
Vincent H. Crespi: Department of Physics and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University
Leandro M. Malard: Departamento de Física, Universidade Federal de Minas Gerais
Marcos A. Pimenta: Departamento de Física, Universidade Federal de Minas Gerais

DOI: https://doi.org/10.1038/ncomms14670
Journal volume & issue: Vol. 8, no. 1
pp. 1 – 8

Abstract

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Double-resonance Raman scattering is a sensitive spectroscopic probe of the interplay between electrons and phonons in a crystal. Here, the authors unveil the signature of double-resonance intervalley scattering by acoustic phonons in two-dimensional MoS2, underpinning the physics of valley depolarization.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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