Inorganic Solid Phases

Fe1−xAlx(Fex/2Al1−x/2)2O4, x= 0.207 (FeAl2O4 lt, T = 1373 K) Crystal Structure

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General Information

  • Phase Label(s): FeAl2O4 lt
  • Structure Class(es): spinel family
  • Classification by Properties: ferrimagnet FiM, semiconductor, spin glass
  • Mineral Name(s): hercynite
  • Pearson Symbol: cF56
  • Space Group: 227
  • Phase Prototype: MgAl2O4
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; United Kingdom, Chilton-Didcot, Rutherford Appleton Laboratory, ISIS Facility, POLARIS (determination of structural parameters), neutrons, time-of-flight (determination of cell and structural parameters), T = 1373 K (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): oxide
  • Interpretation Detail(s): complete structure determined; temperature dependence studied, Rietveld refinement; 140 reflections, wRP = 0.0227
  • Sample Detail(s): hercynite sample from synthetic, sample prepared from Fe2O3 (hematite), Al2O3, trace amounts of γ-Al8/3O4, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: FeAl2O4
  • Alphabetic Formula: Al2FeO4
  • Published Formula: Fe1−xAlx(Fex/2Al1−x/2)2O4, x= 0.207
  • Refined Formula: Al2FeO4
  • Wyckoff Sequence: 227,ecb
  • Z Formula Units: 8
  • Density: ρ = 4.15 Mg·m−3
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Crystallographic Data

Cell Parameters

Published Data
Standardized Data
Unit Cell
Niggli-Reduced Cell
Space Group
a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation
Co-ord. No.
Atomic Env.

Published

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation

Displacement Parameters

Isotropic

Site
Published
B [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1617508

  • Copyright

    ©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

  • Chief Editor

    Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

    villars.mpds@bluewin.ch

  • Credits

    SpringerMaterials Release 2016.

    Data generated pre-2002: © Springer & MPDS & NIMS; post-2001: © Springer & MPDS

    All Rights Reserved. Version 2016.10.

    Project Coordinator: Shuichi Iwata

    Section-Editor: Karin Cenzual (Crystal Structures)

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