Dimorphism of RF3 (R = La-Nd) crystals based on the data of X-ray diffraction studies

Bolotina N. B.; Chernaya T. S.; Verin I. A.; Khrykina O. N.; Sobolev B. P.

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Dimorphism of RF3 (R = La-Nd) crystals based on the data of X-ray diffraction studies

机译：基于X射线衍射研究的数据，RF3（R = La-Nd）晶体的双态性

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The ratio of two forms of tysonite in nominally pure single crystals of RF3 (R = La-Nd) obtained from melts under identical conditions (the as-grown state) is studied for the first time by X-ray diffraction. Crystals of RF3 with R = La-Nd belong to the beta-LaF3 structural type (space group , Z = 6) and form twins. Samples 0.2-0.4 in diameter contain inclusions of the high-temperature a form (space group P6(3)/mmc, Z = 2). It is shown that twinning and dimorphism of the RF3 crystals (R = La-Nd) have a common structural basis.

机译：首次通过X射线衍射研究了在相同条件（生长状态）下从熔体中获得的名义上纯的RF3单晶（R = La-Nd）中两种形式的钛锰矿的比率。 R = La-Nd的RF3晶体属于beta-LaF3结构类型（空间群，Z = 6）并形成孪晶。直径为0.2-0.4的样品包含高温a形夹杂物（空间群P6（3）/ mmc，Z = 2）。结果表明，RF3晶体（R = La-Nd）的孪晶和双晶具有共同的结构基础。

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《Crystallography reports》 |2016年第1期|共6页
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Bolotina N. B.; Chernaya T. S.; Verin I. A.; Khrykina O. N.; Sobolev B. P.;
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正文语种 eng
中图分类晶体学;
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Dimorphism of RF3 (R = La-Nd) crystals based on the data of X-ray diffraction studies

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