کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1483321 1510534 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observation of the collective vibrational modes in Ni42Nb58 metallic glass
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Observation of the collective vibrational modes in Ni42Nb58 metallic glass
چکیده انگلیسی

The dynamic structure factors, S(Q, E), for Ni42Nb58 metallic glass have been measured using neutron inelastic scattering on the IN4 spectrometer (ILL, Grenoble, France), over a range of momentum transfer, 0.7 < ℏQ/Å−1 < 8, and energy transfer, 2 < E/meV < 50. Three samples with the same chemical composition and different Ni isotope content were investigated. The constant-E and constant-Q cuts through the S(Q, E) functions have been obtained. They reveal the E-and Q-dependencies due to the existence of the collective vibrational excitations in Ni42Nb58 glass. At the same time the difference of Ni and Nb atoms dynamics was observed by isotope contrast in the scattered spectra.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 32–40, 15 October 2007, Pages 3188–3191
نویسندگان
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