Inorganic Solid Phases

UFe3Al9 (UFe4Al8 rt) Crystal Structure

General Information

  • Phase Label(s): UFe4Al8 rt
  • Structure Class(es): CaCu5-Zr4Al3 intergrowth
  • Classification by Properties: antiferromagnet AFM, ferrimagnet FiM, ferromagnet FM, hard magnet, metal, spin
  • Mineral Name(s):
  • Pearson Symbol: tI26
  • Space Group: 139
  • Phase Prototype: CeMn4Al8
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Nonius KAPPA (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters), T = 295 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): intermetallic
  • Interpretation Detail(s): complete structure determined, least-squares refinement; 17 variables; 506 reflections; I > 4σ(I), R = 0.043; wR = 0.099
  • Sample Detail(s): sample prepared from U, Fe, Al, mass change after combustion; weight loss during preparation < 0.5 wt.%, single crystal (determination of cell parameters), single crystal, 0.02×0.04×0.04 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: UFe3Al9
  • Alphabetic Formula: Al9Fe3U
  • Published Formula: UFe3Al9
  • Refined Formula: Al9.06Fe2.94U
  • Wyckoff Sequence: 139,jifa
  • Z Formula Units: 2
  • Density: ρ = 5.43 Mg·m−3

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

Anisotropic

Site
U11 [nm2]
U22 [nm2]
U33 [nm2]
U12 [nm2]
U13 [nm2]
U23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1213664

  • 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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