کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5489113 | 1524356 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Growth and polarized Raman spectroscopy investigations of single crystal CdSiP2: Experimental measurements and ab initio calculations
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Large crack free single crystals of CdSiP2 with the dimension of 40Â mm in length and 8Â mm in diameter were grown by vertical Bridgman method. The bonds vibration properties of the CdSiP2 single crystal were investigated by means of polarized micro-Raman spectroscopy and ab initio calculations. The Raman-active modes and IR-active modes were selected in turn. They were definitively assigned in wave number and symmetry based on classical lattice dynamics calculations. The results indicate that the high phonon frequencies mainly arise from the atomic vibrations of the lighter atoms Si or benching/stretching vibrations of PSi bonds; while, the lower frequencies mainly arise from the atomic vibrations of the heaver atoms Cd or the benching/stretching vibrations of PCd bonds. The conclusions may apply to other II-IV-V2 chalcopyrite compounds such as ZnGeP2, CdGeP2, ZnSiP2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 473, 1 September 2017, Pages 28-33
Journal: Journal of Crystal Growth - Volume 473, 1 September 2017, Pages 28-33
نویسندگان
Guodong Zhang, Lei Wei, Longzhen Zhang, Xuping Wang, Bing Liu, Xian Zhao, Xutang Tao,