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  Tuning of Electronic and Vibrational Properties of Transition Metal Selenides TSe2 (T = Os, Ru) and Their Metallization under High Pressure

Naumov, P. G., Baskakov, A. O., Starchikov, S. S., Lyubutin, I. S., Ogarkova, Y. L., Lyubutina, M. V., et al. (2020). Tuning of Electronic and Vibrational Properties of Transition Metal Selenides TSe2 (T = Os, Ru) and Their Metallization under High Pressure. JETP Letters, 111(8), 456-462. doi:10.1134/S0021364020080044.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-4E41-A Version Permalink: http://hdl.handle.net/21.11116/0000-0006-ACDB-2
Genre: Journal Article

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 Creators:
Naumov, P. G.1, Author              
Baskakov, A. O.2, Author
Starchikov, S. S.2, Author
Lyubutin, I. S.2, Author
Ogarkova, Yu. L.2, Author
Lyubutina, M. V.2, Author
Barkalov, O. I.2, Author
Medvedev, S. A.2, Author
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2External Organizations, ou_persistent22              

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 Abstract: We present a systematic analysis of electrical properties of two transition metal selenides OsSe2 and RuSe2 under conditions of low temperature down to 1.8K and external pressure up to 43 GPa. Both compounds have a pyrite-type crystal structure under ambient conditions and, according to Raman spectroscopy, do not undergo phase transitions up to the highest pressures. OsSe2 and RuSe2 undergo semiconductor-to-metal transitions at pressures up to 15 GPa. Further increase in pressure leads to the appearance of a superconducting transition at low temperatures. At 40 GPa, the critical temperatures of the superconducting transition reach maximum values of 5.5 and 6K for RuSe2 and OsSe2, respectively. © 2020, Pleiades Publishing, Inc.

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Language(s): eng - English
 Dates: 2020-04-142020-04-14
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1134/S0021364020080044
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Title: JETP Letters
Source Genre: Journal
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Affiliations:
Publ. Info: Woodbury, N.Y. [etc.] : American Institute of Physics
Pages: - Volume / Issue: 111 (8) Sequence Number: - Start / End Page: 456 - 462 Identifier: ISSN: 0021-3640
CoNE: https://pure.mpg.de/cone/journals/resource/954926954827_1