Inorganic Solid Phases

xY2O3·(1-x)TiO2, x= 0.5 (Y2Ti2O7) Crystal Structure

General Information

  • Phase Label(s): Y2Ti2O7
  • Structure Class(es): pyrochlore family
  • Classification by Properties: ferroelectric FE, intermediate valence, nonmetal, semiconductor
  • Mineral Name(s):
  • Pearson Symbol: cF88
  • Space Group: 227
  • Phase Prototype: Ca2Nb2O7
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), X-rays, synchrotron; λ = 0.072931 nm (determination of cell parameters)
  • Phase Class(es):
  • Compound Class(es): oxide
  • Interpretation Detail(s): cell parameters determined and structure type assigned; composition dependence studied
  • Sample Detail(s): sample prepared from TiO2, Y2O3, amounts of fluorite-type phase (main phase), powder (determination of cell parameters)

Substance Summary

  • Standard Formula: Y2.67Ti1.33O6.67
  • Alphabetic Formula: O6.67Ti1.33Y2.67
  • Published Formula: xY2O3·(1-x)TiO2, x= 0.5
  • Refined Formula:
  • Wyckoff Sequence:
  • Z Formula Units: 8
  • Density: ρ = 4.97 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.

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1831664

  • 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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