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典型文献
Near-field infrared response of graphene on copper substrate
文献摘要:
The electronic properties of graphene are very sensitive to its dielectric environment.The coupling to a metal substrate can give rise to many novel quantum effects in graphene,such as band renormalization and plasmons with unusual properties,which are of high technological interest.Infrared nanoimaging are very suitable for exploring these effects considering their energy and length scales.Here,we report near-field infrared nanoimaging studies of graphene on copper synthesized by chemical vapor deposition.Remarkably,our measurements reveal three different types of near-field optical responses of graphene,which are very distinct from the near-field edge fringes observed in the substrate.These results can be understood from the modification of optical conductivity of graphene due to its coupling with the substrate.Our work provides a framework for identifying the near-field response of graphene in graphene/metal systems and paves the way for studying their novel physics and potential applications.
文献关键词:
作者姓名:
Zhen-Bing Dai;Gui Cen;Zhibin Zhang;Xinyu Lv;Kaihui Liu;Zhiqiang Li
作者机构:
College of Physics,Sichuan University,Chengdu 610065,China;Department of Physics,Sichuan Normal University,Chengdu 610066,China;School of Physics,Peking University,Beijing 100871,China
文献出处:
引用格式:
[1]Zhen-Bing Dai;Gui Cen;Zhibin Zhang;Xinyu Lv;Kaihui Liu;Zhiqiang Li-.Near-field infrared response of graphene on copper substrate)[J].物理学前沿,2022(04):75-81
A类:
nanoimaging
B类:
Near,field,infrared,graphene,copper,substrate,electronic,properties,very,sensitive,its,dielectric,environment,coupling,metal,can,give,rise,many,novel,quantum,effects,such,band,renormalization,plasmons,unusual,which,high,technological,interest,Infrared,suitable,exploring,these,considering,their,energy,length,scales,Here,we,report,near,studies,synthesized,by,chemical,vapor,deposition,Remarkably,our,measurements,reveal,three,different,types,optical,responses,distinct,from,edge,fringes,observed,These,results,be,understood,modification,conductivity,due,Our,provides,framework,identifying,systems,paves,way,studying,physics,potential,applications
AB值:
0.588552
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