Инд. авторы:	Palyanov Y.N., Borzdov Y.M., Kupriyanov I.N., Khohkhryakov A.F., Nechaev D.V.
Заглавие:	Rare-earth metal catalysts for high-pressure synthesis of rare diamonds
Библ. ссылка:	Palyanov Y.N., Borzdov Y.M., Kupriyanov I.N., Khohkhryakov A.F., Nechaev D.V. Rare-earth metal catalysts for high-pressure synthesis of rare diamonds // Scientific Reports. - 2021. - Vol.11. - Iss. 1. - Art.8421. - ISSN 2045-2322.
Внешние системы:	DOI: 10.1038/s41598-021-88038-5; РИНЦ: 46009546; PubMed: 33875767; WoS: 000642571100006;
Реферат:	eng: The combination of the unique properties of diamond and the prospects for its high-technology applications urges the search for new solvents-catalysts for the synthesis of diamonds with rare and unusual properties. Here we report the synthesis of diamond from melts of 15 rare-earth metals (REM) at 7.8 GPa and 1800-2100 degrees C. The boundary conditions for diamond crystallization and the optimal parameters for single crystal diamond synthesis are determined. Depending on the REM catalyst, diamond crystallizes in the form of cube-octahedrons, octahedrons and specific crystals bound by tetragon-trioctahedron and trigon-trioctahedron faces. The synthesized diamonds are nitrogen-free and belong to the rare type II, indicating that the rare-earth metals act as both solvent-catalysts and nitrogen getters. It is found that the REM catalysts enable synthesis of diamond doped with group IV elements with formation of impurity-vacancy color centers, promising for the emerging quantum technologies. Our study demonstrates a new field of application of rare-earth metals.
Ключевые слова:	CRYSTALLIZATION; GROWTH; C SYSTEM;
Издано:	2021
Физ. характеристика:	8421
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