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首页> 外文期刊>Crystallography reports >X-Ray Diffraction Study of an As-Grown Crystal of a Two-Phase Sample of Lu0.65Ca0.35F2.65
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X-Ray Diffraction Study of an As-Grown Crystal of a Two-Phase Sample of Lu0.65Ca0.35F2.65

机译:Lu0.65Ca0.35F2.65两相样品的初生晶体的X射线衍射研究

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摘要

The X-ray diffraction study of an "as-grown" crystal of Lu0.65Ca0.35F2.65 revealed for the first time two phases with a regular mutual orientation. The c axis of the hexagonal phase (a = 3.88 angstrom, c = 6.89 angstrom) is oriented along the body diagonal to the cubic phase (a = 5.50 angstrom). The hexagonal phase has a tysonite-type structure with a "small" unit cell (P6(3)/mmc, Z = 2). The cubic phase has a fluorite structure (Fm (3) over tilde m, Z = 4).
机译:Lu0.65Ca0.35F2.65的“已生长”晶体的X射线衍射研究首次揭示了两个具有规则相互取向的相。六方相的c轴(a = 3.88埃,c = 6.89埃)沿着与立方相(a = 5.50埃)对角线的方向取向。六方相具有具有“小”晶胞的钛铁矿型结构(P6(3)/ mmc,Z = 2)。立方相具有萤石结构(波浪号m上的Fm(3),Z = 4)。

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