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Raman scattering investigations on lanthanum-doped Bi4Ti3O12–SrBi4Ti4O15 intergrowth ferroelectrics

✍ Scribed by Jun Zhu; Xiao-Bing Chen; Jun-Hui He; Jian-Cang Shen


Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
354 KB
Volume
178
Category
Article
ISSN
0022-4596

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Rietveld refinement of powder neutron diffraction data has been used to study the crystal structures of the four-layer Aurivillius-phase ferroelectrics Bi 5 Ti 3 FeO 15 (at 251C) and SrBi 4 Ti 4 O 15 (at a series of temperatures up to 8001C). At 251C both materials adopt the polar orthorhombic space