Impact of molecular distribution on unoccupied image potential states of PbPc/HOPG surfaces
Chemical Physics Letters(2022)
摘要
•Image potential state (IPS) is modified by scattering of electron at molecular islands.•The inside of the parabolic dispersion curve of IPS is filled by the electron scattering.•Energy/momentum map reveals the uncertainty of electron momentum after scattering.•IPS feature is an indicator of inhomogeneous nano-scale superstructures.
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关键词
Image potential state,Lead phthalocyanine,HOPG,Nano-structure,Electron scattering
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