| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1492057 | Materials Research Bulletin | 2007 | 6 Pages |
Abstract
The structure of the cation-ordered double perovskite Ba2HoTaO6 was examined using synchrotron X-ray powder diffraction at fine temperature intervals over the range of 90–300 K. Ba2HoTaO6 has a cubic structure in space group Fm3¯m at room temperature. A proper ferroelastic phase transition to I4/m tetragonal symmetry occurs near approximately 260 K. Analysis of the spontaneous tetragonal strain versus temperature indicated that the phase transition is second order in nature.
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Authors
Brendan J. Kennedy, Paul J. Saines, Yoshiki Kubota, Chiharu Minakata, Hiroko Hano, Kenichi Kato, Masaki Takata,