Inorganic Solid Phases

Tl0.75Pb0.25Y0.25Ca0.75Sr2Cu2O7 (Sr2Ca0.5Cu2Tl0.75Y0.5Pb0.25O7) Crystal Structure

General Information

  • Phase Label(s): Sr2Ca0.5Cu2Tl0.75Y0.5Pb0.25O7
  • Structure Class(es): high-Tc cuprate family
  • Classification by Properties: antiferromagnet AFM, high-Tc superconductor, metal, nonmetal, superconductor
  • Mineral Name(s):
  • Pearson Symbol: tP14
  • Space Group: 123
  • Phase Prototype: Sr2Cu2TlNdO7
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; STOE (determination of structural parameters), X-rays, Cu Kα1; λ = 0.154056 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): oxide
  • Interpretation Detail(s): complete structure determined; composition dependence studied, Rietveld refinement, RP = 0.1185; wRP = 0.1596; RB = 0.1077
  • Sample Detail(s): sample prepared from Tl2O3, PbO2, Y0.25Ca0.75Sr2Cu2Ox, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Sr2Ca0.75Cu2Tl0.75Y0.25Pb0.25O7
  • Alphabetic Formula: Ca0.75Cu2O7Pb0.25Sr2Tl0.75Y0.25
  • Published Formula: Tl0.75Pb0.25Y0.25Ca0.75Sr2Cu2O7
  • Refined Formula: Ca0.74Cu2O7Pb0.23Sr1.93Tl0.76Y0.26
  • Wyckoff Sequence: 123,ih2g2da
  • Z Formula Units: 1
  • Density: ρ = 6.35 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

Isotropic

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

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1600765

  • 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)

  • Cite this content

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