Open Access

Science advances, издание 6, том 9

Superconducting praseodymium superhydrides

Zhou Di ¹

Semenok Dmitry V. ²

Duan Defang ¹

Xie Hui ¹

Chen Wuhao ¹

Huang Xiaoli ¹

Li Xin ¹

Bingbing LIU ¹

Oganov A. R. ^{2, 3}

Cui Tian ^{1, 4}

State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China.

Skolkovo Institute of Science and Technology, Skolkovo Innovation Center 143026, 3 Nobel Street, Moscow, Russia.

International Center for Materials Discovery, Northwestern Polytechnical University, Xi’an 710072, China.

⁴

School of Physical Science and Technology, Ningbo University, Ningbo 315211, China.

Тип публикации: Journal Article

Дата публикации: 2020-02-28

American Association for the Advancement of Science (AAAS)

Журнал: Science advances

Квартиль SCImago: Q1

Квартиль WOS: Q1

Impact factor: 13.6

ISSN: 23752548

DOI: 10.1126/sciadv.aax6849

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PubMed ID: 32158937

Multidisciplinary

Краткое описание

We have successfully realized the synthesis and superconductivity of praseodymium superhydrides above megabar pressures. Superhydrides have complex hydrogenic sublattices and are important prototypes for studying metallic hydrogen and high-temperature superconductors. Previous results for LaH10 suggest that the Pr-H system may be especially worth studying because of the magnetism and valence-band f-electrons in the element Pr. Here, we successfully synthesized praseodymium superhydrides (PrH9) in laser-heated diamond anvil cells. Synchrotron x-ray diffraction analysis demonstrated the presence of previously predicted F4¯3m-PrH9 and unexpected P63/mmc-PrH9 phases. Experimental studies of electrical resistance in the PrH9 sample showed the emergence of a possible superconducting transition (Tc) below 9 K and Tc dependent on the applied magnetic field. Theoretical calculations indicate that magnetic order and likely superconductivity coexist in a narrow range of pressures in the PrH9 sample, which may contribute to its low superconducting temperature. Our results highlight the intimate connections between hydrogenic sublattices, density of states, magnetism, and superconductivity in Pr-based superhydrides.

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Physical Review B	Physical Review B, 15, 18.07% Physical Review B 15 публикаций, 18.07%
Journal of Applied Physics	Journal of Applied Physics, 4, 4.82% Journal of Applied Physics 4 публикации, 4.82%
Superconductor Science and Technology	Superconductor Science and Technology, 4, 4.82% Superconductor Science and Technology 4 публикации, 4.82%
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Advanced Materials	Advanced Materials, 3, 3.61% Advanced Materials 3 публикации, 3.61%
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Scientific Reports	Scientific Reports, 3, 3.61% Scientific Reports 3 публикации, 3.61%
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Physical Review Materials	Physical Review Materials, 2, 2.41% Physical Review Materials 2 публикации, 2.41%
Physical Review Research	Physical Review Research, 2, 2.41% Physical Review Research 2 публикации, 2.41%
Journal of Superconductivity and Novel Magnetism	Journal of Superconductivity and Novel Magnetism, 2, 2.41% Journal of Superconductivity and Novel Magnetism 2 публикации, 2.41%
Symmetry	Symmetry, 2, 2.41% Symmetry 2 публикации, 2.41%
Materials Today Physics	Materials Today Physics, 2, 2.41% Materials Today Physics 2 публикации, 2.41%
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Materials Today	Materials Today, 1, 1.2% Materials Today 1 публикация, 1.2%
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Zhou D. et al. Superconducting praseodymium superhydrides // Science advances. 2020. Vol. 6. No. 9.

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Zhou D., Semenok D. V., Duan D., Xie H., Chen W., Huang X., Li X., Bingbing L., Oganov A. R., Cui T. Superconducting praseodymium superhydrides // Science advances. 2020. Vol. 6. No. 9.

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TY - JOUR

DO - 10.1126/sciadv.aax6849

UR - https://doi.org/10.1126/sciadv.aax6849

TI - Superconducting praseodymium superhydrides

T2 - Science advances

AU - Zhou, Di

AU - Semenok, Dmitry V.

AU - Duan, Defang

AU - Xie, Hui

AU - Chen, Wuhao

AU - Huang, Xiaoli

AU - Li, Xin

AU - Bingbing, LIU

AU - Oganov, A. R.

AU - Cui, Tian

PY - 2020

DA - 2020/02/28 00:00:00

PB - American Association for the Advancement of Science (AAAS)

IS - 9

VL - 6

PMID - 32158937

SN - 2375-2548

ER -

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@article{2020_Zhou

author = {Di Zhou and Dmitry V. Semenok and Defang Duan and Hui Xie and Wuhao Chen and Xiaoli Huang and Xin Li and LIU Bingbing and A. R. Oganov and Tian Cui},

title = {Superconducting praseodymium superhydrides},

journal = {Science advances},

year = {2020},

volume = {6},

publisher = {American Association for the Advancement of Science (AAAS)},

month = {feb},

url = {https://doi.org/10.1126/sciadv.aax6849},

number = {9},

doi = {10.1126/sciadv.aax6849}

}

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Zhou, Di, et al. “Superconducting Praseodymium Superhydrides.” Science Advances, vol. 6, no. 9, Feb. 2020. Crossref, https://doi.org/10.1126/sciadv.aax6849.

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American Association for the Advancement of Science (AAAS)

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Science advances

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23752548 (Electronic)

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