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Multicomponent plasmons in monolayer MoS2 with circularly polarized optical pumping
Xiao, Y. M.1,2,3; Xu, W.2,3,4; Peeters, F. M.1; Van Duppen, B.1
2017-08-03
发表期刊PHYSICAL REVIEW B
卷号96期号:8
摘要By making use of circularly polarized light and electrostatic gating, monolayer molybdenum disulfide (ML - MoS2) can form a platform supporting multiple types of charge carriers. They can be discriminated by their spin, valley index, or whether they are electrons or holes. We investigate the collective properties of those charge carriers and are able to identify distinct plasmon modes. We analyze the corresponding dispersion relation, lifetime, and oscillator strength, and calculate the phase relation between the oscillations in the different components of the plasmon modes. All platforms in ML-MoS2 support a long-wavelength root q plasmon branch at zero kelvins. In addition to this, for an n-component system, n-1 distinct plasmon modes appear as acoustic modes with linear dispersion in the long-wavelength limit. These modes correspond to out-of-phase oscillations in the different fermion liquids and have, although being damped, a relatively long lifetime. Additionally, we also find distinct modes at large wave vectors that are more strongly damped by intraband processes.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
资助者China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Flemish Science Foundation (FWO-Vl) ; Flemish Science Foundation (FWO-Vl) ; National Natural Science Foundation of China(11574319 ; National Natural Science Foundation of China(11574319 ; Ministry of Science and Technology of China(2011YQ130018) ; Ministry of Science and Technology of China(2011YQ130018) ; Department of Science and Technology of Yunnan Province ; Department of Science and Technology of Yunnan Province ; Applied Basic Research Foundation of Yunnan Province(2013FD003) ; Applied Basic Research Foundation of Yunnan Province(2013FD003) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11304272) ; 11304272) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Flemish Science Foundation (FWO-Vl) ; Flemish Science Foundation (FWO-Vl) ; National Natural Science Foundation of China(11574319 ; National Natural Science Foundation of China(11574319 ; Ministry of Science and Technology of China(2011YQ130018) ; Ministry of Science and Technology of China(2011YQ130018) ; Department of Science and Technology of Yunnan Province ; Department of Science and Technology of Yunnan Province ; Applied Basic Research Foundation of Yunnan Province(2013FD003) ; Applied Basic Research Foundation of Yunnan Province(2013FD003) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11304272) ; 11304272)
DOI10.1103/PhysRevB.96.085405
关键词[WOS]2-DIMENSIONAL ELECTRON-GAS ; SINGLE-LAYER MOS2 ; GRAPHENE PLASMONICS ; VALLEY POLARIZATION ; TRANSISTORS ; TERAHERTZ ; POLARIZABILITY
收录类别SCI
语种英语
资助者China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Flemish Science Foundation (FWO-Vl) ; Flemish Science Foundation (FWO-Vl) ; National Natural Science Foundation of China(11574319 ; National Natural Science Foundation of China(11574319 ; Ministry of Science and Technology of China(2011YQ130018) ; Ministry of Science and Technology of China(2011YQ130018) ; Department of Science and Technology of Yunnan Province ; Department of Science and Technology of Yunnan Province ; Applied Basic Research Foundation of Yunnan Province(2013FD003) ; Applied Basic Research Foundation of Yunnan Province(2013FD003) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11304272) ; 11304272) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Flemish Science Foundation (FWO-Vl) ; Flemish Science Foundation (FWO-Vl) ; National Natural Science Foundation of China(11574319 ; National Natural Science Foundation of China(11574319 ; Ministry of Science and Technology of China(2011YQ130018) ; Ministry of Science and Technology of China(2011YQ130018) ; Department of Science and Technology of Yunnan Province ; Department of Science and Technology of Yunnan Province ; Applied Basic Research Foundation of Yunnan Province(2013FD003) ; Applied Basic Research Foundation of Yunnan Province(2013FD003) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11304272) ; 11304272)
WOS研究方向Physics
WOS类目Physics, Condensed Matter
WOS记录号WOS:000406861600001
引用统计
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33578
专题中科院固体物理研究所
作者单位1.Univ Antwerp, Dept Phys, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
2.Yunnan Univ, Dept Phys & Astron, Kunming 650091, Yunnan, Peoples R China
3.Yunnan Univ, Yunnan Key Lab Micro Nano Mat & Technol, Kunming 650091, Yunnan, Peoples R China
4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
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Xiao, Y. M.,Xu, W.,Peeters, F. M.,et al. Multicomponent plasmons in monolayer MoS2 with circularly polarized optical pumping[J]. PHYSICAL REVIEW B,2017,96(8).
APA Xiao, Y. M.,Xu, W.,Peeters, F. M.,&Van Duppen, B..(2017).Multicomponent plasmons in monolayer MoS2 with circularly polarized optical pumping.PHYSICAL REVIEW B,96(8).
MLA Xiao, Y. M.,et al."Multicomponent plasmons in monolayer MoS2 with circularly polarized optical pumping".PHYSICAL REVIEW B 96.8(2017).
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