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This article is cited in 3 scientific papers (total in 3 papers)
CONDENSED MATTER
Raman spectroscopy of nanopolycrystalline diamond produced from shungite at 15 GPa and 1600$^\circ$ C
V. P. Afanas'eva, K. D. Litasovb, S. V. Goryainova, V. V. Kovalevskiic a Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
b Vereshchagin Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow, 108840 Russia
c Institute of Geology, Karelian Scientific Center, Russian Academy of Sciences, Petrozavodsk, 185610 Russia
Abstract:
It has been demonstrated that the high-pressure (15 GPa) treatment of shungite samples (Karelia, Russia) at a temperature of 1600$^\circ$ C for 2 h transforms them to diamond. The comparison of the Raman spectra of the diamond material prepared from shungite and carbonado, which is a rare variety of cubic diamond sometimes called black diamond, has revealed their significant similarities. Our data indicate the possible growth of carbonado from the shungite-like natural material, which may be one of the ways carbonado appears under terrestrial conditions.
Received: 30.12.2019 Revised: 23.01.2020 Accepted: 23.01.2020
Citation:
V. P. Afanas'ev, K. D. Litasov, S. V. Goryainov, V. V. Kovalevskii, “Raman spectroscopy of nanopolycrystalline diamond produced from shungite at 15 GPa and 1600$^\circ$ C”, Pis'ma v Zh. Èksper. Teoret. Fiz., 111:4 (2020), 230–236; JETP Letters, 111:4 (2020), 218–224
Linking options:
https://www.mathnet.ru/eng/jetpl6112 https://www.mathnet.ru/eng/jetpl/v111/i4/p230
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