Inorganic Solid Phases

SmAs, tetragonal, hp (SmAs hp, p = 45.0 GPa) Crystal Structure

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General Information

  • Phase Label(s): SmAs hp
  • Structure Class(es): b.c.c. atom arrangement
  • Classification by Properties: –
  • Mineral Name(s): –
  • Pearson Symbol: tP2
  • Space Group: 123
  • Phase Prototype: CuTi
  • Measurement Detail(s): automatic diffractometer (determination of structural parameters), X-rays, synchrotron; λ = 0.04959 nm (determination of structural parameters), p = 45.0 GPa (determination of structural parameters)
  • Phase Class(es): –
  • Compound Class(es): arsenide
  • Interpretation Detail(s): complete structure determined; pressure dependence studied, least-squares refinement
  • Sample Detail(s): sample prepared from Sm, As, powder (determination of structural parameters)

Substance Summary

  • Standard Formula: SmAs
  • Alphabetic Formula: AsSm
  • Published Formula: SmAs, tetragonal, hp
  • Refined Formula: AsSm
  • Wyckoff Sequence: 123,da
  • Z Formula Units: 1
  • Density: ρ = 11.07 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

Powder Pattern

published defraction line
d [Å]
computed diffraction line for Cu Kα
d [nm]
intensity
I [1]
h [1]
k [1]
l [1]
Radiation
Remark

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1021866

  • 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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