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P. P. Kong, Vasily S. Minkov, Mikhail A. Kuzovnikov, Alexander P. Drozdov, Stanislav P. Besedin, Shirin Mozaffari, Luis Balicas, Fedor Balakirev, Vitali B. Prakapenka, Stella Chariton and 3 more
The discovery of superconducting H 3 S with a critical temperature T c ∼200 K opened a door to room temperature superconductivity and stimulated further extensive studies of hydrogen-rich compounds stabilized by high pressure. Here, we report a comprehensive study of the yttrium-hydrogen system with the highest predicted T c s among binary compounds and discuss the contradictions between different theoretical calculations and experimental data. We synthesized yttrium hydrides with the compositions of YH 3 , YH 4 , YH 6 and YH 9 in a diamond anvil cell and studied their crystal structures, electrical and magnetic transport properties, and isotopic effects. We found superconductivity in the Im-3m YH 6 and P6 3 /mmc YH 9 phases with maximal T c s of ∼220 K at 183 GPa and ∼243 K at 201 GPa, respectively. Fm-3m YH 10 with the highest predicted T c > 300 K was not observed in our experiments, and instead, YH 9 was found to be the hydrogen-richest yttrium hydride in the studied pressure and temperature range up to record 410 GPa and 2250 K.
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Kong, P. P., Minkov, V. S., Kuzovnikov, M. A., Drozdov, A. P., Besedin, S. P., Mozaffari, S., Balicas, L., Balakirev, F., Prakapenka, V. B., Chariton, S., Knyazev, D. A., Greenberg, E., & Eremets, M. I. (2021). Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure. Nature Communications, 12(1), 5075. https://doi.org/10.1038/s41467-021-25372-2
Kong, P. P., et al. "Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure." Nature Communications, vol. 12, no. 1, 2021, pp. 5075, https://doi.org/10.1038/s41467-021-25372-2.
Kong, P. P., Vasily S. Minkov, Mikhail A. Kuzovnikov, Alexander P. Drozdov, Stanislav P. Besedin, Shirin Mozaffari, Luis Balicas, et al. "Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure." Nature Communications 12, no. 1 (2021): 5075. https://doi.org/10.1038/s41467-021-25372-2.
Kong P. P., Minkov V. S., Kuzovnikov M. A. [и др.] Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure // Nature Communications. — 2021. — Vol. 12, № 1. — P. 5075. — URL: https://doi.org/10.1038/s41467-021-25372-2
@article{kong2021superconductivity,
title = {{Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure}},
author = {P. P. Kong and Vasily S. Minkov and Mikhail A. Kuzovnikov and Alexander P. Drozdov and Stanislav P. Besedin and Shirin Mozaffari and Luis Balicas and Fedor Balakirev and Vitali B. Prakapenka and Stella Chariton and Dmitry A. Knyazev and Eran Greenberg and M. I. Eremets},
journal = {Nature Communications},
year = {2021},
volume = {12},
number = {1},
pages = {5075},
doi = {10.1038/s41467-021-25372-2},
url = {https://doi.org/10.1038/s41467-021-25372-2}
}TY - JOUR AU - Kong, P. P. AU - Minkov, Vasily S. AU - Kuzovnikov, Mikhail A. AU - Drozdov, Alexander P. AU - Besedin, Stanislav P. AU - Mozaffari, Shirin AU - Balicas, Luis AU - Balakirev, Fedor AU - Prakapenka, Vitali B. AU - Chariton, Stella AU - Knyazev, Dmitry A. AU - Greenberg, Eran AU - Eremets, M. I. TI - Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure JO - Nature Communications VL - 12 IS - 1 SP - 5075 PY - 2021 DA - 2021/08/20 DO - 10.1038/s41467-021-25372-2 UR - https://doi.org/10.1038/s41467-021-25372-2 ER -
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