Self-energy of image states on copper surfaces

Article

关键词: DENSITY-FUNCTIONAL THEORY;    POTENTIAL STATES;    METAL-SURFACES;    2-PHOTON PHOTOEMISSION;    INVERSE PHOTOEMISSION;    FEMTOSECOND DYNAMICS;    RESOLVED PHOTOEMISSION;    ELECTRON INTERACTIONS;    RESPONSE FUNCTION;    RYDBERG STATES;   

DOI  :  10.1103/PhysRevB.60.11795

来源: SCIE

【 摘 要 】

We report extensive calculations of the imaginary part of the electron self-energy in the vicinity of the (100) and (111) surfaces of Cu. The quasiparticle self-energy is computed by going beyond a fret-electron description of the metal surface, either within the GW approximation of many-body theory or with inclusion, within the GW Gamma approximation, of short-range exchange-correlation effects. Calculations of the decay rate of the first three image states on Cu(100) and the first image state on Cu(111) are also reported, and the impact of both band structure and many-body effects on the electron relaxation process is discussed. [S0163-1829(99)03940-5].

【 授权许可】

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