Silvanite AuAgTe4: a rare case of gold superconducting material
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Silvanite AuAgTe4: a rare case of gold superconducting material
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| Автор |
Amiel, Y.
Kafle, G. P. Komleva, E. V. Greenberg, E. Ponosov, Y. S. Chariton, S. Lavina, B. Zhang, D. Palevski, A. Ushakov, A. V. Mori, H. Khomskii, D. I. Mazin, I. I. Streltsov, S. V. Margine, E. R. Rozenberg, G. K. |
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| Тематика |
ELECTRON-PHONON INTERACTIONS
GOLD GOLD COMPOUNDS HIGH TEMPERATURE SUPERCONDUCTORS HYDROSTATIC PRESSURE COMBINED X RAY DIFFRACTION CONDITION ELEMENT AG GOLD AND SILVER HIGH T C INERT METALS NOBLE ELEMENT NORMAL CONDITION PROPERTY RESISTIVITY MEASUREMENT DENSITY FUNCTIONAL THEORY |
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| Описание |
Gold is one of the most inert metals, forming very few compounds, some with rather interesting properties, and only a few of them are currently known to be superconducting under certain conditions. Compounds of another noble element, Ag, are also relatively rare, and very few of them are superconducting. Finding new superconducting materials containing gold (and silver) is a challenge - especially having in mind that the best high-Tc superconductors under normal conditions are based upon their rather close congener, Cu. Here we report combined X-ray diffraction, Raman, and resistivity measurements, as well as first-principles calculations, to explore the effect of hydrostatic pressure on the properties of the sylvanite mineral, AuAgTe4. Our experimental results, supported by density functional theory, reveal a structural phase transition at ∼5 GPa from a monoclinic P2/c to P2/m phase, resulting in almost identical coordinations of Au and Ag ions, with rather uniform interatomic distances. Furthermore, resistivity measurements show the onset of superconductivity at ∼1.5 GPa in the P2/c phase, followed by a linear increase of Tc up to the phase transition, with a maximum in the P2/m phase, and a gradual decrease afterwards. Our calculations indicate phonon-mediated superconductivity, with the electron-phonon coupling coming predominantly from the low-energy phonon modes. Thus, along with the discovery of a new superconducting compound of gold/silver, our results advance the understanding of the mechanism behind superconductivity in Au-containing compounds and dichalcogenides of other transition metals. © 2023 The Royal Society of Chemistry.
EAR – 1606856; EAR – 1634415; National Science Foundation, NSF: ACI-1548562, DMR-2035518, OAC-1818253, OAC-2103991; U.S. Department of Energy, USDOE: DE-FG02-94ER14466; Office of Science, SC: DE-AC02-06CH11357; Argonne National Laboratory, ANL; University of Chicago; Israel Science Foundation, ISF: 1552/18, 1748/20 We are grateful to Prof. L. Bohatý and Prof. P. Becker-Bohatý for providing us with natural single-crystals. We thank I. Silber and G. Tuvia for assisting with the resistance measurements. This work was supported by the National Science Foundation under grant no. DMR-2035518 (for superconductivity analysis) and grant no. OAC-2103991 (for code development). This research was supported by the Israel Science Foundation (grants no. 1552/18 and 1748/20). This work used the Expanse system at the San Diego Supercomputer Center via allocation TG-DMR180071 and the Frontera supercomputer at the Texas Advanced Computing Center via the Leadership Resource Allocation (LRAC) award DMR22004. Expanse is supported by the Extreme Science and Engineering Discovery Environment (XSEDE) program40 through NSF award no. ACI-1548562, and Frontera is supported by NSF award no. OAC-1818253.41 Portions of this work were performed at GeoSoilEnviroCARS (The University of Chicago, Sector 13), Advanced Photon Source (APS), Argonne National Laboratory. GeoSoilEnviroCARS is supported by the National Science Foundation – Earth Sciences (EAR – 1634415). Use of the COMPRES-GSECARS gas loading system was supported by COMPRES under NSF Cooperative Agreement EAR – 1606856 and by GSECARS through NSF grant EAR – 1634415 and DOE grant DE-FG02-94ER14466. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. E. V. K., Yu. S. P., A. V. U., and S. V. S., thank the Russian Ministry of Science and High Education (project “Quantum” no. 122021000038-7). |
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| Дата |
2024-04-05T16:28:31Z
2024-04-05T16:28:31Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Amiel, Y, Kafle, GP, Komleva, E, Greenberg, E, Ponosov, Y, Chariton, S, Lavina, B, Zhang, D, Palevski, A, Ushakov, AV, Mori, H, Khomskii, DI, Mazin, I, Streltsov, S, Margine, E & Rozenberg, G 2023, 'Silvanite AuAgTe4: a rare case of gold superconducting material', Journal of Materials Chemistry C, Том. 11, № 29, стр. 10016-10024. https://doi.org/10.1039/D3TC00787A
Amiel, Y., Kafle, G. P., Komleva, E., Greenberg, E., Ponosov, Y., Chariton, S., Lavina, B., Zhang, D., Palevski, A., Ushakov, A. V., Mori, H., Khomskii, D. I., Mazin, I., Streltsov, S., Margine, E., & Rozenberg, G. (2023). Silvanite AuAgTe4: a rare case of gold superconducting material. Journal of Materials Chemistry C, 11(29), 10016-10024. https://doi.org/10.1039/D3TC00787A 2050-7526 Final All Open Access, Hybrid Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85165470778&doi=10.1039%2fd3tc00787a&partnerID=40&md5=b2e200767283dbf9f58fe560f16c9ea9 https://pubs.rsc.org/en/content/articlepdf/2023/tc/d3tc00787a http://elar.urfu.ru/handle/10995/130658 10.1039/d3tc00787a 85165470778 001023717300001 |
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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 |
Royal Society of Chemistry
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| Источник |
Journal of Materials Chemistry C
Journal of Materials Chemistry C |
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