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Persistent URL http://purl.org/net/epubs/work/29852
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Record Id 29852
Title Phase transitions in BaTiO3: a high-pressure neutron diffraction study
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
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Language English (EN)
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Journal Article Z Kristallogr 220 (2005): 735-739. doi:10.1524/zkri.220.8.735.67077 2005