Physical Review B - Condensed Matter and Materials Physics vol. 54, no. 13, pp. 8973 - 8976
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Document Type
Article
Abstract
The interatomic force constants of the SiO2 polymorph stishovite at linear order, obtained from the first-principles calculations, are analyzed. I examine the noncentrality, anisotropy, and long-range behavior of the interatomic force constants. Comparisons with α-quartz are also made.