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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/29852
Record Status
Checked
Record Id
29852
Title
Phase transitions in BaTiO
3
: a high-pressure neutron diffraction study
Contributors
SA Hayward
,
S A T Redfern
,
H J Stone
,
M G Tucker
,
K R Whittle
,
W G Marshall
Abstract
The sequence of ferroelectric phase transitions (Pm3m ? P4mm ? Amm2) in BaTiO3 has been studied as a function of temperature (298 K ? 130 K) at a fixed pressure (3.2 GPa). The same sequence of transitions is observed as for ambient pressures, but the transition temperatures are reduced. The spontaneous strains of the non-cubic phases are determined. Whilst the structure of the tetragonal phase at high pressure is qualitatively similar to the ambient structure, both the spontaneous strain and the Ti displacement are smaller in the high pressure structure than the ambient structure.
Organisation
CCLRC
,
ISIS
,
ISIS-PEARL
Keywords
Physics
,
Natural environment
,
ISIS 2004
,
ISIS 2004 Update
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Z Kristallogr
220 (2005): 735-739.
doi:10.1524/zkri.220.8.735.67077
2005
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