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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/50658
Record Status
Checked
Record Id
50658
Title
High temperature neutron diffraction studies of 0.9BiFeO
3
-0.1PbTiO
3
Contributors
TP Comyn (Leeds U.)
,
T Stevenson (LeedsU.)
,
M Al-Jawad (Leeds U.)
,
SL Turner (Leeds U.)
,
RI Smith (STFC Rutherford Appleton Lab.)
,
AJ Bell (Leeds U.)
,
R Cywinski (Leeds U.)
Abstract
Neutron diffraction data were collected from sintered polycrystalline 0.9BiFeO3-0.1PbTiO3 at temperatures between 293 and 793 K and the crystal and magnetic structures refined by the Rietveld method. An antiferromagnetic Néel temperature of 592 K was determined from a Brillouin fit to the refined magnetic moments with a ground state of 4.34µB, showing no loss of moment per Fe site compared to BiFeO3. Some magnetic order was observed to persist above the Néel temperature. A maximum in the spontaneous rhombohedral strain was observed close to the Néel temperature, in a significant departure from typical Landau behavior for a ferroelectric and suggesting a coupling between the magnetic and nuclear structures.
Organisation
ISIS
,
ISIS-POLARIS
,
STFC
Keywords
Physics
,
Materials
,
Chemistry
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
J Appl Phys
105, no. 9 (2009): 094108.
doi:10.1063/1.3116735
2009
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