Angle-dependent ultraviolet photoelectron spectroscopy of sputter cleaned polycrystalline noble metals
作者： MG Helander , MT Greiner , ZB Wang , ZH Lu , None
DOI: 10.1016/J.APSUSC.2009.07.099
关键词:
摘要: Polycrystalline noble metal films are commonly used in practical applications across a variety of different fields. However, the surface electronic structure metals has primarily only been studied on single crystal substrates. In addition, sputter cleaned polycrystalline substrates ultraviolet photoelectron spectroscopy (UPS) studies, but have yet to be systematically terms their photoemission anisotropy. The angle-dependence valence band spectra Au, Ag and Cu were using angle-resolved UPS. It is found that anisotropic with respect take-off angle. results for good agreement previous reports d-band narrowing films. significant anisotropies d-band, s-band Fermi edge Au observed, which cannot attributed alone. unusual drastic changes film morphology near as result cleaning.
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