K-point longitudinal acoustic phonons are responsible for ultrafast intervalley scattering in monolayer MoSe2

K-point longitudinal acoustic phonons are responsible for ultrafast intervalley scattering in monolayer MoSe2

Valley depolarization processes in 2D transition metal dichalcogenides have been linked to acoustic phonons, but optical verification is ambiguous, due to the nearly degenerate acoustic phonon frequencies at the zone-edge. Here, the authors determine the phonon momentum of the longitudinal acoustic...

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Bibliographic Details
Main Authors: Soungmin Bae, Kana Matsumoto, Hannes Raebiger, Ken-ichi Shudo, Yong-Hoon Kim, Ørjan Sele Handegård, Tadaaki Nagao, Masahiro Kitajima, Yuji Sakai, Xiang Zhang, Robert Vajtai, Pulickel Ajayan, Junichiro Kono, Jun Takeda, Ikufumi Katayama
Format: Article
Language:English
Published: Nature Portfolio 2022-07-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-022-32008-6

Internet

https://doi.org/10.1038/s41467-022-32008-6

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