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Tai Nguyen So - Vietnam National University, Ha Noi - VNU >
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Please use this identifier to cite or link to this item:
http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/12586
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| Title: | Tetrahedral ↔ octahedral network structure transition in simulated vitreous SiO2 |
| Authors: | Van Hoang V.
Trung Hai N.
Zung H. |
| Keywords: | Amorphous oxide
Computer simulation
Phase transition |
| Issue Date: | 2006 |
| Publisher: | Physics Letters, Section A: General, Atomic and Solid State Physics |
| Citation: | Volume 356, Issue 3, Page 246-250 |
| Abstract: | By using molecular dynamics (MD) simulations we found a transition from a tetrahedral to an octahedral network structure in an amorphous SiO2 model under compression from 2.20 to 5.35 g/cm3. And on heating of a high density amorphous (hda) model of 5.35 g/cm3 at zero pressure, the structure transforms to a low density amorphous (lda) form. Simulations were done in a model containing 3000 particles under periodic boundary conditions with interatomic potentials which have a weak Coulomb interaction and a Morse type short-range interaction. © 2006 Elsevier B.V. All rights reserved. |
| URI: | http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/12586 |
| ISSN: | 3759601 |
| Appears in Collections: | Articles of Universities of Vietnam from Scopus
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