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Silvanite AuAgTe4: a rare case of gold superconducting material. / Amiel, Yehezkel; Kafle, Gyanu P.; Komleva, Evgenia et al.
In: Journal of Materials Chemistry C, Vol. 11, No. 29, 2023, p. 10016-10024.

Research output: Contribution to journal › Article › peer-review

Harvard

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, vol. 11, no. 29, pp. 10016-10024. https://doi.org/10.1039/D3TC00787A

APA

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

Vancouver

Amiel Y, Kafle GP, Komleva E, Greenberg E, Ponosov Y, Chariton S et al. Silvanite AuAgTe4: a rare case of gold superconducting material. Journal of Materials Chemistry C. 2023;11(29):10016-10024. doi: 10.1039/D3TC00787A

Author

Amiel, Yehezkel ; Kafle, Gyanu P. ; Komleva, Evgenia et al. / Silvanite AuAgTe4: a rare case of gold superconducting material. In: Journal of Materials Chemistry C. 2023 ; Vol. 11, No. 29. pp. 10016-10024.

BibTeX

@article{02ca5a50d30f4523acc190cfec5a9021,
title = "Silvanite AuAgTe4: a rare case of gold superconducting material",
abstract = "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.",
author = "Yehezkel Amiel and Kafle, {Gyanu P.} and Evgenia Komleva and Eran Greenberg and Yuri Ponosov and Stella Chariton and Barbara Lavina and Dongzhou Zhang and Alexander Palevski and Ushakov, {Alexey v.} and Hitoshi Mori and Khomskii, {Daniel i.} and Igor Mazin and Sergey Streltsov and Elena Margine and Gregory Rozenberg",
year = "2023",
doi = "10.1039/D3TC00787A",
language = "English",
volume = "11",
pages = "10016--10024",
journal = "Journal of Materials Chemistry C",
issn = "2050-7526",
publisher = "Royal Society of Chemistry",
number = "29",

}

RIS

TY - JOUR

T1 - Silvanite AuAgTe4: a rare case of gold superconducting material

AU - Amiel, Yehezkel

AU - Kafle, Gyanu P.

AU - Komleva, Evgenia

AU - Greenberg, Eran

AU - Ponosov, Yuri

AU - Chariton, Stella

AU - Lavina, Barbara

AU - Zhang, Dongzhou

AU - Palevski, Alexander

AU - Ushakov, Alexey v.

AU - Mori, Hitoshi

AU - Khomskii, Daniel i.

AU - Mazin, Igor

AU - Streltsov, Sergey

AU - Margine, Elena

AU - Rozenberg, Gregory

PY - 2023

Y1 - 2023

N2 - 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.

AB - 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.

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001023717300001

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85165470778

U2 - 10.1039/D3TC00787A

DO - 10.1039/D3TC00787A

M3 - Article

VL - 11

SP - 10016

EP - 10024

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

SN - 2050-7526

IS - 29

ER -

ID: 43319064