کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1483158 1645410 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural development in Ge-rich Ge–S glasses
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Structural development in Ge-rich Ge–S glasses
چکیده انگلیسی

The Raman spectra of Ge–S glasses in the Ge-rich region from Ge 33% to 46% have been investigated in order to know the structural development of the network glasses. From the detailed curve fits, we have found that there is an unassigned peak at 410 cm−1 and it becomes larger with increasing Ge composition. To clarify the structural origin of the peak, we virtually constructed the atomic arrangement of the glassy state starting from the crystalline state through the liquid state and changed the composition gradually depleting the medium in sulfur. From the consideration of the structural modeling and the atomic orbital theory, we suggest that single Ge–S chain is a probable structural origin of the peak.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 355, Issues 37–42, 1 October 2009, Pages 1792–1796
نویسندگان
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