Inorganic Solid Phases

PbTe-based phase in Ge0.55Pb0.45Te1−xSex, x= 0.2 (Pb0.5Ge0.5Te0.5Se0.5) Crystal Structure

General Information

  • Phase Label(s): Pb0.5Ge0.5Te0.5Se0.5
  • Structure Class(es): rocksalt family
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: cF8
  • Space Group: 225
  • Phase Prototype: NaCl
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Bruker AXS D8 ADVANCE (determination of structural parameters), X-rays, Cu Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): selenide, telluride
  • Interpretation Detail(s): complete structure determined, Rietveld refinement, multiphase, RP = 0.0534; wRP = 0.0679
  • Sample Detail(s): sample prepared from Pb, Ge, Te, Se, amounts of GeTe-based phase (40.12 wt.%), powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Pb0.8Ge0.2Te0.8Se0.2
  • Alphabetic Formula: Ge0.2Pb0.8Se0.2Te0.8
  • Published Formula: PbTe-based phase in Ge0.55Pb0.45Te1−xSex, x= 0.2
  • Refined Formula: Ge0.20Pb0.80Se0.20Te0.80
  • Wyckoff Sequence: 225,ba
  • Z Formula Units: 4
  • Density: ρ = 7.95 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

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1724886

  • 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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