Raman and x-ray diffraction studies of nanometric Sn2P2S6 crystals

被引：16
作者：
Gomonnai, AV
Azhniuk, YM
Vysochanskii, YM
Kikineshi, AA
Kis-Varga, M
Daroczy, L
Prits, IP
Voynarovych, IM
机构：
[1] Natl Acad Sci Ukraine, Inst Electron Phys, UA-88017 Uzhgorod, Ukraine
[2] Uzhgorod Natl Univ, UA-88000 Uzhgorod, Ukraine
[3] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary
[4] Univ Debrecen, Dept Solid State Phys, H-4010 Debrecen, Hungary
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2003年 / 15卷 / 37期
关键词：
D O I：
10.1088/0953-8984/15/37/006
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Nanometric Sn2P2S6 crystalline powders and ceramics are studied by x-ray diffraction and Raman spectroscopy. The average crystallite size is estimated from TEM and x-ray data. The observed features in the Raman spectra are discussed in view of confinement-related selection rules relaxation, surface phonon modes and possible partial substitution of sulfur by oxygen at the nanometric powder surface.
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收藏
页码：6381 / 6393
页数：13
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