Published November 11, 2002 | Version v1
Journal article Metadata-only

First-principles studies of pressure-induced phase transitions in SiO2

Creators

  • 1. National Research Council of Canada, Ottawa, ON (Canada)

Description

Structural stability is investigated for the CaCl2 structure of SiO2 by using a first-principles linear response theory. Softening of modes is found in the direction of the Γ-X (100) axis in k-space at 810 GPa. The results of the present work strongly support the assertion that the P21/n structure is very reasonable suggestion for the post-CaCl2 structure

Availability note (English)

Available online at http://stacks.iop.org/0953-8984/14/10891/c24496.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0953-8984/14/10891/c24496.pdf; http://www.iop.org/;
PII
S0953-8984(02)37863-9;

Publishing Information

Journal Title
Journal of Physics. Condensed Matter
Journal Volume
14
Journal Issue
44
Journal Page Range
p. 10891-10894
ISSN
0953-8984
CODEN
JCOMEL

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
34031153
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
CUBIC LATTICES; HIGH PRESSURE; PHASE STABILITY; PHASE STUDIES; PHASE TRANSFORMATIONS; PRESSURE DEPENDENCE; SILICON OXIDES
Descriptors DEC
CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; OXIDES; OXYGEN COMPOUNDS; SILICON COMPOUNDS; STABILITY