Pressure-Induced Reversible Local Structural Disorder in Superconducting AuAgTe4
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Pressure-Induced Reversible Local Structural Disorder in Superconducting AuAgTe4
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| Автор |
Zamyatin, D. A.
Pankrushina, E. A. Streltsov, S. V. Ponosov, Y. S. |
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| Тематика |
AUAGTE4
DFT PRESSURE SUPERCONDUCTING SYLVANITE |
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| Описание |
Here, we report results of the investigation of the lattice dynamics of the sylvanite mineral AuAgTe4 in a wide temperature and pressure range by Raman spectroscopy, together with the first-principle calculations. At ambient pressure, the experimental spectrum agrees well with the calculation data. The temperature behavior of the phonon self-energies (frequencies and linewidths) are described by an anharmonic mechanism and imply negligible contributions of electron–phonon interaction at low temperatures. A structural phase transition was recorded in the pressure range of 4–6 GPa, which is in accordance with theoretical predictions. At higher pressures, evidence of local structural disorder was found that made it possible to experimentally observe the spectrum of the density of vibrational states of AuAgTe4, which becomes superconducting under pressure. © 2023 by the authors.
AAAA-A19-119071090011-6; Ministry of Education and Science of the Russian Federation, Minobrnauka: 122011300125-2, 122021000039-4 This research was funded by the state assignment of the Ministry of Science and Higher Education of the Russian Federation (Theme “Electron” No. 122021000039-4). The Phonon spectra interpretation was funded within the framework of research project No. 122011300125-2. The SEM and EPMA analysis was funded within the framework of IGG UB RAS research project No. AAAA-A19-119071090011-6. |
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| Дата |
2024-04-05T16:18:20Z
2024-04-05T16:18:20Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Zamyatin, DA, Pankrushina, EA, Streltsov, SV & Ponosov, YS 2023, 'Pressure-Induced Reversible Local Structural Disorder in Superconducting AuAgTe4', Inorganics, Том. 11, № 3, 99. https://doi.org/10.3390/inorganics11030099
Zamyatin, D. A., Pankrushina, E. A., Streltsov, S. V., & Ponosov, Y. S. (2023). Pressure-Induced Reversible Local Structural Disorder in Superconducting AuAgTe4. Inorganics, 11(3), [99]. https://doi.org/10.3390/inorganics11030099 2304-6740 Final All Open Access, Gold https://www.scopus.com/inward/record.uri?eid=2-s2.0-85151130131&doi=10.3390%2finorganics11030099&partnerID=40&md5=d2616ecc41d9c14747314b706acc0f7c https://www.mdpi.com/2304-6740/11/3/99/pdf?version=1677561738 http://elar.urfu.ru/handle/10995/130310 10.3390/inorganics11030099 85151130131 000956617700001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
MDPI
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| Источник |
Inorganics
Inorganics |
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