Автор |
Gongwen Peng |
Автор |
Decheng Tian |
Дата выпуска |
1989-03-20 |
dc.description |
The authors have calculated the vibrational densities of states for v-SiO<sub>2</sub> and the binary v-SiO<sub>2</sub>-GeO<sub>2</sub> glasses. The results for v-SiO<sub>2</sub> are in agreement with the neutron scattering spectrum and previous theoretical calculation of Bell et al. (1972). The spectra of v-SiO<sub>2</sub>-GeO<sub>2</sub> glasses which contain only a small fraction of GeO<sub>2</sub> are found to have the general features of v-SiO<sub>2</sub>, except for a new peak characteristic of Ge doping and a split To-like band which agrees with Raman scattering and can be understood simply by the superposition of the local densities of states of SiO<sub>4</sub> and GeO<sub>4</sub> tetrahedral with different weights. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
The vibrational spectra of v-SiO<sub>2</sub> and SiO<sub>2</sub>-GeO<sub>2</sub> glasses |
Тип |
paper |
DOI |
10.1088/0953-8984/1/11/001 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
1 |
Первая страница |
1933 |
Последняя страница |
1939 |
Аффилиация |
Gongwen Peng; Dept. of Phys., Wuhan Univ., Hubei, China |
Аффилиация |
Decheng Tian; Dept. of Phys., Wuhan Univ., Hubei, China |
Выпуск |
11 |