Journal of Alloys and Compounds, volume 860, pages 158419

Crystal structure and phase transitions at high pressures in the superconductor FeSe0.89S0.11

Nikiforova Yulia A ¹

Troyan I. A.

Chareev Dmitriy A.

Starchikov Sergey S

Lyubutin Igor S.

Frolov Kirill V.

Baskakov Arseniy O ¹

Ivanova Anna G.

Lyubutina Mariana V ¹

Naumov Pavel G

Abdel-Hafiez Mahmoud

Ivanova Anna ¹

Frolov Kirill V. ¹

LYUBUTIN I.S. ¹

Chareev D. A. ²

STARCHIKOV S.S. ¹

Troyan Ivan A. ¹

Naumov Pavel G. ¹

Abdel-Hafiez M. ³

Hide authors affiliations Show authors affiliations: 3 affiliations

Shubnikov Institute of Crystallography of FSRC “Crystallography and Photonics” of Russian Academy of Sciences, Moscow, 119333, Russia

FSRC "Crystallography and photonics" of NRC «Kurchatov Institute»

Shubnikov Institute of Crystallography

Institute of Experimental Mineralogy of Russian Academy of Sciences, Chernogolovka, Moscow region, 142432, Russia |

Department of Physics and Astronomy , Uppsala University , Box 516, SE-75120 , Uppsala Sweden. |

Publication type: Journal Article

Publication date: 2021-04-01

Elsevier

Journal: Journal of Alloys and Compounds

Quartile SCImago

Quartile WOS

Impact factor: 6.2

ISSN: 09258388

DOI: 10.1016/j.jallcom.2020.158419

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Materials Chemistry

Metals and Alloys

Mechanical Engineering

Mechanics of Materials

Abstract

• Structural phase transitions in the FeSe0.89S0.11 superconductor at high pressures up to 18.5 GPa. • Most sample part’s recrystallization into the hexagonal phase (sp. gr. P63/mmc) at decompression. • Strong hysteresis of the structural properties during a phase transition under pressure. We report on the structural phase transitions in the FeSe 0.89 S 0.11 superconductor with T C = 11 K observed by powder synchrotron X-ray diffraction at high pressures up to 18.5 GPa under compression and decompression modes. It was found that at ambient pressure and room temperature, FeSe 0.89 S 0.11 has a tetragonal structure (space group P4/n). Under compression, in the region of 10 GPa, a phase transition from the tetragonal into the orthorhombic structure (sp. gr. Pnma) is observed, which persists up to 18.5 GPa. Our results strongly suggest that, at decompression, as the applied pressure decreases to 6 GPa and then is completely removed, most of the sample recrystallizes into the hexagonal phase of the structural type NiAs (sp. gr. P6 3 /mmc). However, the other part of the sample remains in the high pressure orthorhombic phase (sp. gr. Pnma), while the tetragonal phase (sp. gr. P4/n) is not restored. These observations illustrate a strong hysteresis of the structural properties of FeSe 0.89 S 0.11 during a phase transition under pressure.

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Nikiforova Y. A. et al. Crystal structure and phase transitions at high pressures in the superconductor FeSe0.89S0.11 // Journal of Alloys and Compounds. 2021. Vol. 860. p. 158419.

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Ivanova A. G., Abdel-Hafiez M., Naumov P. G., Lyubutina M. V., Troyan I. A., Starchikov S. S., Baskakov A. O., Chareev D. A., Lyubutin I. S., Frolov K. V., Nikiforova Y. A., Ivanova A., Frolov K. V., LYUBUTIN I., Chareev D. A., STARCHIKOV S., Troyan I. A., Naumov P. G., Abdel-Hafiez M. Crystal structure and phase transitions at high pressures in the superconductor FeSe0.89S0.11 // Journal of Alloys and Compounds. 2021. Vol. 860. p. 158419.

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TY - JOUR

DO - 10.1016/j.jallcom.2020.158419

UR - https://doi.org/10.1016%2Fj.jallcom.2020.158419

TI - Crystal structure and phase transitions at high pressures in the superconductor FeSe0.89S0.11

T2 - Journal of Alloys and Compounds

AU - Nikiforova, Yulia A

AU - Ivanova, Anna G.

AU - Frolov, Kirill V.

AU - Lyubutin, Igor S.

AU - Chareev, Dmitriy A.

AU - Baskakov, Arseniy O

AU - Starchikov, Sergey S

AU - Troyan, I. A.

AU - Lyubutina, Mariana V

AU - Naumov, Pavel G

AU - Abdel-Hafiez, Mahmoud

AU - Ivanova, Anna

AU - Frolov, Kirill V.

AU - LYUBUTIN, I.S.

AU - Chareev, D. A.

AU - STARCHIKOV, S.S.

AU - Troyan, Ivan A.

AU - Naumov, Pavel G.

AU - Abdel-Hafiez, M.

PY - 2021

DA - 2021/04/01 00:00:00

PB - Elsevier

SP - 158419

VL - 860

SN - 0925-8388

ER -

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@article{2021_Nikiforova,

author = {Yulia A Nikiforova and Anna G. Ivanova and Kirill V. Frolov and Igor S. Lyubutin and Dmitriy A. Chareev and Arseniy O Baskakov and Sergey S Starchikov and I. A. Troyan and Mariana V Lyubutina and Pavel G Naumov and Mahmoud Abdel-Hafiez and Anna Ivanova and Kirill V. Frolov and I.S. LYUBUTIN and D. A. Chareev and S.S. STARCHIKOV and Ivan A. Troyan and Pavel G. Naumov and M. Abdel-Hafiez},

title = {Crystal structure and phase transitions at high pressures in the superconductor FeSe0.89S0.11},

journal = {Journal of Alloys and Compounds},

year = {2021},

volume = {860},

publisher = {Elsevier},

month = {apr},

url = {https://doi.org/10.1016%2Fj.jallcom.2020.158419},

pages = {158419},

doi = {10.1016/j.jallcom.2020.158419}

}

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Publisher

Elsevier

Journal

Journal of Alloys and Compounds

Quartile SCImago

Quartile WOS

Impact factor

6.2

ISSN

09258388 (Print)

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