Materials Today Physics, volume 22, pages 100596
Possible superconductivity at ∼70 K in tin hydride SnHx under high pressure
Hong F.
1
,
Yu Hoi-Fung
,
Shan P. F.
1
,
YANG L. X.
2
,
Yue B. B.
2
,
Yang P.
1
,
Liu Z. Y.
1
,
Sun J. X.
1
,
DAI J. H.
1
,
Yu H.
1
,
Yin Y. –C. Yin
1
,
Yu Xin
1
,
Cheng J.-G.
1
,
Zhao Z.
1
Publication type: Journal Article
Publication date: 2022-01-01
Journal:
Materials Today Physics
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 11.5
ISSN: 25425293
General Materials Science
Physics and Astronomy (miscellaneous)
Energy (miscellaneous)
Abstract
Hydrides of air non-sensitive IVA-group elements were predicted to be possible high temperature superconductors (HTS) by N.W. Ashcroft (PRL 92 , 187002 (2004)), which inspired the exploration of hydrogen dominated metallic alloy-based HTS. Although the IVA-group hydrides have been investigated theoretically by several groups, the experimental realization of any superconducting IVA-group hydrides is still lacking. Here, we report on the observation of the possible superconducting transition at ∼70 K in a SnH x sample synthesized by laser heating Sn and ammonia borane inside a diamond anvil cell at ∼200 GPa. The main phase of the obtained sample can be indexed with the monoclinic C 2/ m SnH 12 via comparison with the theoretical structural modes, which have distinct H-network with respect to the clathrate-type structure. A sudden drop of resistance and the systematic downward shift under external magnetic fields signal the occurrence of superconductivity in SnH x with an upper critical field μ 0 H c2 (0) ≈ 11.2 T, and the resistive broadening behavior in magnetic fields follows the trend of traditional standard superconductors. This work provides an alternative way to obtain metal hydrides HTS via p electron-metals rather than the active s or f electron-metals (such as Mg, Ca, La, Y, Ce), which will stimulate the experimental exploration of hydrides HTS in different element groups. A new metal hydride SnH x superconductor with T c ≈ 72 K is synthesized at ∼200 GPa. • A new hydride SnH x is synthesized at ∼200 GPa, and is confirmed to be a high-temperature superconductor (HTS) with T c ≈ 72 K. • The obtained SnH x is a p-electron metal hydride superconductor containing H 2 and H 4 molecule-like units. • SnH x is the first experimentally synthesized HTS among the IVA-group hydrides.
Citations by journals
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1 publication, 4.35%
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1 publication, 4.35%
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1 publication, 4.35%
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Chinese Physics Letters
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1 publication, 4.35%
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1 publication, 4.35%
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Nature
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Nature
1 publication, 4.35%
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3
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Citations by publishers
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5
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Springer Nature
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5 publications, 21.74%
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IOP Publishing
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IOP Publishing
2 publications, 8.7%
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King Saud University
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King Saud University
1 publication, 4.35%
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Yu H. et al. Possible superconductivity at ∼70 K in tin hydride SnHx under high pressure // Materials Today Physics. 2022. Vol. 22. p. 100596.
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Yu H., Hong F., Shan P. F., YANG L. X., Yue B., Yang P., Liu Z. Y., Sun J. X., DAI J. H., Yu H., Yin Y. –. Y., Yu X., Cheng J., Zhao Z. Possible superconductivity at ∼70 K in tin hydride SnHx under high pressure // Materials Today Physics. 2022. Vol. 22. p. 100596.
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TY - JOUR
DO - 10.1016/j.mtphys.2021.100596
UR - https://doi.org/10.1016%2Fj.mtphys.2021.100596
TI - Possible superconductivity at ∼70 K in tin hydride SnHx under high pressure
T2 - Materials Today Physics
AU - Yu, Hoi-Fung
AU - Hong, F.
AU - Shan, P. F.
AU - YANG, L. X.
AU - Yue, B. B.
AU - Yang, P.
AU - Liu, Z. Y.
AU - Sun, J. X.
AU - DAI, J. H.
AU - Yu, H.
AU - Yin, Y. –C. Yin
AU - Yu, Xin
AU - Cheng, J.-G.
AU - Zhao, Z.
PY - 2022
DA - 2022/01/01 00:00:00
PB - Elsevier
SP - 100596
VL - 22
SN - 2542-5293
ER -
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@article{2022_Yu,
author = {Hoi-Fung Yu and F. Hong and P. F. Shan and L. X. YANG and B. B. Yue and P. Yang and Z. Y. Liu and J. X. Sun and J. H. DAI and H. Yu and Y. –C. Yin Yin and Xin Yu and J.-G. Cheng and Z. Zhao},
title = {Possible superconductivity at ∼70 K in tin hydride SnHx under high pressure},
journal = {Materials Today Physics},
year = {2022},
volume = {22},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016%2Fj.mtphys.2021.100596},
pages = {100596},
doi = {10.1016/j.mtphys.2021.100596}
}
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