کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1546069 997607 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Raman spectrum of single-walled boron nitride nanotube
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Raman spectrum of single-walled boron nitride nanotube
چکیده انگلیسی

Using the spectral moments method, the calculations of the Raman spectra of single-walled boron nitride nanotubes (SW-BNNTs) were performed in the framework of the force constants model. Spectra were computed for chiral and achiral nanotubes for different diameters and lengths. The Raman scattering intensities were determined using the bond-polarizability model and a good agreement with group theory analysis was found. We show that the modes in the low frequency region are very sensitive to the nanotube diameter variation, whereas the ones associated to the tangential region are chirality dependent. The number of Raman active modes, their frequencies, and intensities depend on the length of the nanotube.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 41, Issue 10, October 2009, Pages 1800–1805
نویسندگان
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