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

Yulia A. Nikiforova,Anna G. Ivanova,Kirill V. Frolov,Igor S. Lyubutin,Dmitriy A. Chareev,Arseniy O. Baskakov,Sergey S. Starchikov,Ivan A. Troyan,Mariana V. Lyubutina,Pavel G. Naumov,Mahmoud Abdel-Hafiez

Journal of Alloys and Compounds（2021）

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摘要

•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.

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关键词

Iron-based superconductors,High pressure,Single crystal X-ray diffraction,Powder X-ray diffraction,Structural phase transition

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