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Synthesis and Structure of BiCa2VO6

โœ Scribed by I. Radosavljevic; J.S.O. Evans; A.W. Sleight

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
284 KB
Volume
137
Category
Article
ISSN
0022-4596

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โœฆ Synopsis

A new compound, BiCa 2 VO 6 , has been synthesized and its structure determined. This compound crystallizes in space group Cmc2 1 (No. 36) with a โ€ซุโ€ฌ 8.892 A > , b โ€ซุโ€ฌ 11.961 A > , c โ€ซุโ€ฌ 5.546 A > , and Z โ€ซุโ€ฌ 4. Both high-resolution X-ray and neutron powder diffraction data were used in the refinement of the BiCa 2 VO 6 structure. This structure can be described as composed of (BiO 2 ) ุŠ chains, VO 3ุŠ 4 tetrahedra, and Ca 2ุ‰ cations leading to a BiO 2 Ca 2 VO 4 structural formula. This compound is potentially ferroelectric where switching polarity would mainly involve rotations of VO 4 tetrahedra.

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