Structures of FeS Polymorphs at High Pressure and Temperature

Y. Fei; C. T. Prewitt; D. J. Frost; J. B. Pariset; K. Brister

doi:10.4131/jshpreview.7.55

Structures of FeS Polymorphs at High Pressure and Temperature

Y. Fei, C. T. Prewitt, D. J. Frost, J. B. Pariset, K. Brister

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

9 Scopus citations

Abstract

Powder x-ray diffraction data for FeS polymorphs were collected at high pressure and temperature, using monochromatic synchrotron x-radiation and image plate. The diffraction data collected at 10.95 GPa and 300 K revealed a monoclinic high-pressure phase (FeS III) with cell parameters, a = 8.025(4) Å, b = 5.614(2) Å, C = 6.414(4) Å, and β = 93.01(4)°. The space group of this monoclinic phase is P2₁la. We also collected diffraction data for the high PT phase (FeS IV) at 5.2 GPa and 9.0 GPa and at 530 K and for the high-T phase (FeS V) at 3.4 GPa and 650 K. The FeS IV phase has a hexagonal (2a, c) unit cell (space group P6₃mc) and the FeS V phase has a simple NiAs-type structure (space group P6₃/mmc). The structure parameters were determined by Rietveld refinements.

Original language	English (US)
Pages (from-to)	55-58
Number of pages	4
Journal	Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
Volume	7
DOIs	https://doi.org/10.4131/jshpreview.7.55
State	Published - 1998

Keywords

Crystallography
High-pressure physics
Phase transition
Synchrotron x-ray diffraction
crystal chemistry

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Structures of FeS Polymorphs at High Pressure and Temperature",

abstract = "Powder x-ray diffraction data for FeS polymorphs were collected at high pressure and temperature, using monochromatic synchrotron x-radiation and image plate. The diffraction data collected at 10.95 GPa and 300 K revealed a monoclinic high-pressure phase (FeS III) with cell parameters, a = 8.025(4) {\AA}, b = 5.614(2) {\AA}, C = 6.414(4) {\AA}, and β = 93.01(4)°. The space group of this monoclinic phase is P21la. We also collected diffraction data for the high PT phase (FeS IV) at 5.2 GPa and 9.0 GPa and at 530 K and for the high-T phase (FeS V) at 3.4 GPa and 650 K. The FeS IV phase has a hexagonal (2a, c) unit cell (space group P63mc) and the FeS V phase has a simple NiAs-type structure (space group P63/mmc). The structure parameters were determined by Rietveld refinements.",

keywords = "Crystallography, High-pressure physics, Phase transition, Synchrotron x-ray diffraction, crystal chemistry",

author = "Y. Fei and Prewitt, {C. T.} and Frost, {D. J.} and Pariset, {J. B.} and K. Brister",

year = "1998",

doi = "10.4131/jshpreview.7.55",

language = "English (US)",

volume = "7",

pages = "55--58",

journal = "Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu",

issn = "0917-639X",

publisher = "Japan Society of High Pressure Science and Technology",

}

TY - JOUR

T1 - Structures of FeS Polymorphs at High Pressure and Temperature

AU - Fei, Y.

AU - Prewitt, C. T.

AU - Frost, D. J.

AU - Pariset, J. B.

AU - Brister, K.

PY - 1998

Y1 - 1998

N2 - Powder x-ray diffraction data for FeS polymorphs were collected at high pressure and temperature, using monochromatic synchrotron x-radiation and image plate. The diffraction data collected at 10.95 GPa and 300 K revealed a monoclinic high-pressure phase (FeS III) with cell parameters, a = 8.025(4) Å, b = 5.614(2) Å, C = 6.414(4) Å, and β = 93.01(4)°. The space group of this monoclinic phase is P21la. We also collected diffraction data for the high PT phase (FeS IV) at 5.2 GPa and 9.0 GPa and at 530 K and for the high-T phase (FeS V) at 3.4 GPa and 650 K. The FeS IV phase has a hexagonal (2a, c) unit cell (space group P63mc) and the FeS V phase has a simple NiAs-type structure (space group P63/mmc). The structure parameters were determined by Rietveld refinements.

AB - Powder x-ray diffraction data for FeS polymorphs were collected at high pressure and temperature, using monochromatic synchrotron x-radiation and image plate. The diffraction data collected at 10.95 GPa and 300 K revealed a monoclinic high-pressure phase (FeS III) with cell parameters, a = 8.025(4) Å, b = 5.614(2) Å, C = 6.414(4) Å, and β = 93.01(4)°. The space group of this monoclinic phase is P21la. We also collected diffraction data for the high PT phase (FeS IV) at 5.2 GPa and 9.0 GPa and at 530 K and for the high-T phase (FeS V) at 3.4 GPa and 650 K. The FeS IV phase has a hexagonal (2a, c) unit cell (space group P63mc) and the FeS V phase has a simple NiAs-type structure (space group P63/mmc). The structure parameters were determined by Rietveld refinements.

KW - Crystallography

KW - High-pressure physics

KW - Phase transition

KW - Synchrotron x-ray diffraction

KW - crystal chemistry

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ER -

Structures of FeS Polymorphs at High Pressure and Temperature

Abstract

Keywords

ASJC Scopus subject areas

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