期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 21, 期 19, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/21/19/195406
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资金
- CNPq
- CAPES
- LNLS [7093/08]
The local atomic order of an amorphous Se0.90S0.10 alloy produced by mechanical alloying was studied by x-ray diffraction and extended x-ray absorption fine structure (EXAFS) data obtained at three temperatures, T = 300, 200 and 30 K. From the cumulant analysis of the EXAFS data, structural properties such as average interatomic distances, average coordination numbers, Debye-Waller factors and anharmonicity, given by the third cumulant, were obtained. The results found indicate that there is alloying at an atomic level, and Se-S pairs are more disordered and distorted than Se-Se ones due to the milling process.
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