Crystal structure of the high-pressure monoclinic phase-II of cristobalite, SiO2

M. T. Dove; M. S. Craig; D. A. Keen; W. G. Marshall; S. A.T. Redfern; K. O. Trachenko; M. G. Tucker

doi:10.1180/002646100549436

Crystal structure of the high-pressure monoclinic phase-II of cristobalite, SiO₂

M. T. Dove, M. S. Craig, D. A. Keen, W. G. Marshall, S. A.T. Redfern, K. O. Trachenko, M. G. Tucker

Neutron Scattering Division

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

Abstract

The crystal structure of the high-pressure phase-II of cristobalite has been solved by neutron diffraction (space group P2₁/c, a = 8.3780(11) Å, b = 4.6018(6) Å, c = 9.0568(13) Å, β = 124.949(7)°, at P = 3.5 GPa). This phase corresponds to a distortion of the high-temperature cubic β-phase, rather than of the ambient temperature and pressure tetragonal α-phase.

Original language	English
Pages (from-to)	569-576
Number of pages	8
Journal	Mineralogical Magazine
Volume	64
Issue number	3
DOIs	https://doi.org/10.1180/002646100549436
State	Published - Jun 2000

Keywords

Cristobalite
High-pressure
Neutron diffraction
Phase transitions

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10.1180/002646100549436

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title = "Crystal structure of the high-pressure monoclinic phase-II of cristobalite, SiO2",

abstract = "The crystal structure of the high-pressure phase-II of cristobalite has been solved by neutron diffraction (space group P21/c, a = 8.3780(11) {\AA}, b = 4.6018(6) {\AA}, c = 9.0568(13) {\AA}, β = 124.949(7)°, at P = 3.5 GPa). This phase corresponds to a distortion of the high-temperature cubic β-phase, rather than of the ambient temperature and pressure tetragonal α-phase.",

keywords = "Cristobalite, High-pressure, Neutron diffraction, Phase transitions",

author = "Dove, \{M. T.\} and Craig, \{M. S.\} and Keen, \{D. A.\} and Marshall, \{W. G.\} and Redfern, \{S. A.T.\} and Trachenko, \{K. O.\} and Tucker, \{M. G.\}",

year = "2000",

month = jun,

doi = "10.1180/002646100549436",

language = "English",

volume = "64",

pages = "569--576",

journal = "Mineralogical Magazine",

issn = "0026-461X",

publisher = "Cambridge University Press",

number = "3",

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TY - JOUR

T1 - Crystal structure of the high-pressure monoclinic phase-II of cristobalite, SiO2

AU - Dove, M. T.

AU - Craig, M. S.

AU - Keen, D. A.

AU - Marshall, W. G.

AU - Redfern, S. A.T.

AU - Trachenko, K. O.

AU - Tucker, M. G.

PY - 2000/6

Y1 - 2000/6

N2 - The crystal structure of the high-pressure phase-II of cristobalite has been solved by neutron diffraction (space group P21/c, a = 8.3780(11) Å, b = 4.6018(6) Å, c = 9.0568(13) Å, β = 124.949(7)°, at P = 3.5 GPa). This phase corresponds to a distortion of the high-temperature cubic β-phase, rather than of the ambient temperature and pressure tetragonal α-phase.

AB - The crystal structure of the high-pressure phase-II of cristobalite has been solved by neutron diffraction (space group P21/c, a = 8.3780(11) Å, b = 4.6018(6) Å, c = 9.0568(13) Å, β = 124.949(7)°, at P = 3.5 GPa). This phase corresponds to a distortion of the high-temperature cubic β-phase, rather than of the ambient temperature and pressure tetragonal α-phase.

KW - Cristobalite

KW - High-pressure

KW - Neutron diffraction

KW - Phase transitions

UR - https://www.scopus.com/pages/publications/0034045538

U2 - 10.1180/002646100549436

DO - 10.1180/002646100549436

M3 - Article

AN - SCOPUS:0034045538

SN - 0026-461X

VL - 64

SP - 569

EP - 576

JO - Mineralogical Magazine

JF - Mineralogical Magazine

IS - 3

ER -

Crystal structure of the high-pressure monoclinic phase-II of cristobalite, SiO₂

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