کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1485174 1510535 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New sight into the structure of selenium: Four-valence Se in glass
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
New sight into the structure of selenium: Four-valence Se in glass
چکیده انگلیسی
A comparison of the known structural data, with our quantum-chemical results for a-Se, leads to the conclusion that a neutral four-valence state, Se40, represents the lowest-energy (0.4 eV) defect, whose concentration is about 10% in the glass and greater in the melt. These results are expanded to other substances with the conclusion that the ability of a chemical bond system to generate low-energy network-linking alternative bonds (or 'defects') is a key property that distinguishes a group of glass-forming substances.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 30–31, 1 October 2007, Pages 2944-2948
نویسندگان
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