Resonances in the photoemission cross section of a surface state: Results for Ag(111)
作者： T. C. Hsieh , P. John , T. Miller , T.-C. Chiang
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摘要: We present a model to explain the resonances in photoemission cross section of surface state as function photon energy. The is based on an extension direct-transition for bulk states, and should be applicable with long decay length. Energy broadening final states momentum initial are included consideration. Resonances surface-state expected occur energies corresponding direct transitions from Bloch states. Ag(111) was measured over energy range 36--65 eV, resonance at 54 eV observed. data were compared theoretical results. similar Cu(111), studied previously by Louie et al. (Phys. Rev. Lett. 44, 549 (1980)) reanalyzed terms model. results these two systems, will compared.
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