کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5426307 1395886 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface core-level shift of Pd at the AgcPd1−c(1 1 1) surface: Nonlinear subsurface effects
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Surface core-level shift of Pd at the AgcPd1−c(1 1 1) surface: Nonlinear subsurface effects
چکیده انگلیسی

The surface core-level binding-energy shift (SCLS) of Pd at the AgcPd1−c(1 1 1) surface is calculated as a function of bulk concentration of the alloy. The equilibrium volume and the surface concentration profile used in the calculations refer to the 0 K case. The SCLSs are evaluated within the Z + 1 approximation. The results are analysed using the mixing enthalpy of the alloy and the bulk and surface chemical potentials. A relation of the SCLS to the bulk concentration is considered. This relation is shown to be mediated by the surface concentration profile which induces the observed nonlinear behaviour. The results are interpreted using a simple model for the alloy electronic structure.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 601, Issue 23, 1 December 2007, Pages 5419-5423
نویسندگان
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