Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1492644 | Materials Research Bulletin | 2007 | 5 Pages |
Abstract
The crystal structure of Ba3MTiWO9 (M = Mg, Zn) oxides has been found to be 6H hexagonal, space group P63/mmc, parameters of unit cell: a = 5.7943(1) Å, c = 14.1642(1) Å and a = 5.7993(1) Å, c = 14.1626(1) Å for M = Mg and Zn, respectively. The tungsten and titanium atoms are randomly distributed in pairs of face-sharing octahedra separated by octahedral layers containing magnesium or zinc. It was revealed that the structures are well ordered which is believed to result in a low dielectric loss at a microwave frequency reported for these materials.
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Physical Sciences and Engineering
Materials Science
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Authors
D.D. Khalyavin, A.M.R. Senos, P.Q. Mantas,