کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5420012 1395128 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Key ingredients of the alkali atom - metal surface interaction: Chemical bonding versus spectral properties
ترجمه فارسی عنوان
ترکیبات کلیدی اتم قلیایی - تعامل سطح فلز: اتصال شیمیایی در مقابل خواص طیفی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
The interaction of alkali atoms with metal surfaces is reviewed. The peculiar electronic configuration of such atoms, with only one valence electron participating in the bond formation, suggested simple pictures to describe their interaction with a metal surface. But it was early evident that the adsorption properties depend on many aspects, related to the electronic structure of constituents, leading, for example, to different degrees of ionicity/covalency of the alkali atom-metal bond. Sophisticated theoretical modeling tried to shed light on this aspect. The spectral properties are the ultimate features in determining how the systems interact with each other. In this review the electronic and spectral properties are discussed focusing on different theoretical representations of the physical system and on their consequences. Surface projected energy gaps of the substrate as well as the substrate continuous spectrum are key aspects in determining the nature of the interaction and bonding with alkali adsorbates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Surface Science - Volume 88, Issue 2, May 2013, Pages 160-170
نویسندگان
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