Synthesis and crystal-chemical characterization of MgSiO3 perovskite |
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Authors: | Eiji Ito Yoshito Matsui |
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Institution: | Institute for Thermal Spring Research, Okayama University, Misasa, Tottori-ken 682-02 Japan |
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Abstract: | The orthorhombic MgSiO3 perovskite has been synthesized with the aid of a double-stage split-sphere-type high-pressure apparatus at about 280 kbar and 1000°C. The unit cell dimensions are: a = 4.7754(3)Å, b = 4.9292(4)Å and c = 6.8969(5)Å with the probable space group Pbnm. Calculated density is 4.108 g cm?3. Crystal structure determination has been carried out by means of both the geometrical simulation (DLS) technique and the ordinary powder X-ray analysis. The results indicate that the MgSiO3 perovskite is closer to the ideal perovskite than ScAlO3 perovskite. |
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