Open AccessTransition‐Metal Dichalcogenides: Anisotropic Collective Charge Excitations in Quasimetallic 2D Transition‐Metal Dichalcogenides (Adv. Sci. 10/2020)
Author(s) -
Tang Chi Sin,
Yin Xinmao,
Yang Ming,
Wu Di,
Wu Jing,
Wong Lai Mun,
Li Changjian,
Tong Shi Wun,
Chang YungHuang,
Ouyang Fangping,
Feng Yuan Ping,
Wang Shi Jie,
Chi Dongzhi,
Breese Mark B. H.,
Zhang Wenjing,
Rusydi Andrivo,
Wee Andrew T. S.
Publication year - 2020
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.202070055
Subject(s) - transition metal , condensed matter physics , plasmon , monolayer , quasiparticle , anisotropy , coupling (piping) , charge (physics) , superconductivity , materials science , metal , range (aeronautics) , physics , nanotechnology , chemistry , optoelectronics , quantum mechanics , biochemistry , metallurgy , composite material , catalysis
In article number 1902726, Xinmao Yin, Andrew T. S. Wee, and co‐workers observe 1D mid‐IR range anisotropic plasmons in quasi‐metallic WSe 2 and MoS 2 monolayers. In‐depth analysis reveals that the long‐range inter‐chain coupling is responsible for the 1D‐charge dynamics and the plasmon energy is dictated by the effects of spin–orbit coupling. Detailed investigation into these collective modes in 2D‐chained systems opens new opportunities for novel device applications and holds significant implications to the underlying mechanism that governs superconductivity in 2D‐transition‐metal dichalcogenide systems.