Growth and morphological study of copper oxide single crystals |
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| Authors: | A A Bush V Ya Shkuratov A B Kuz’menko E A Tishchenko |
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| Institution: | (1) Moscow State Institute of Radioengineering, Electronics, and Automation (Technical University), pr. Vernadskogo 78, Moscow, 117454, Russia;(2) Kapitsa Institute for Physical Problems, Russian Academy of Sciences, ul. Kosygina 2, Moscow, 117973, Russia |
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| Abstract: | Experiments on the growth of CuO single crystals by crystallization from flux in the CuO-Bi2O3-PbO-PbF2, CuO-Bi2O3-Li2O, CuO-Bi2O3-B2O3, CuO-BaO-Y2O3, and CuO-MOx systems (M = P, V, or Mo) have been performed. The best results were obtained in crystallization in the CuO-Bi2O3-PbF2 system: prismatic single crystals of platelet-and needlelike or isometric habit with dimensions up to 1 × 10 × 10, 1 × 1 × 20, or 6 × 6 × 8 mm, respectively, have been grown. The CuO crystals show polysynthetic twinning in the form of numerous alternating light and dark bands bound by systems of parallel straight lines on the {110} and {111} faces. A possible model of twinning associated with the Cu2O → CuO transformation is considered. |
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