High-Temperature Superconductivity in a Th–H System under Pressure Conditions
Alexander G. Kvashnin
1, 2
,
Dmitry V. Semenok
1, 2
,
Ivan A. Kruglov
2, 3
,
Izabela A. Wrona
4
,
A. R. Oganov
1, 3, 5
Publication type: Journal Article
Publication date: 2018-12-04
scimago Q1
wos Q1
SJR: 1.921
CiteScore: 14.5
Impact factor: 8.2
ISSN: 19448244, 19448252
PubMed ID:
30512924
General Materials Science
Abstract
New stable phase thorium decahydride Fm3̅ m-ThH10, a high-temperature superconductor with TC up to 241 K (-32 °C), critical field HC up to 71 T, and superconducting gap Δ0 of 52 meV at 80-100 GPa, is predicted by evolutionary algorithm USPEX. Another phase, P21/ c-ThH7, is found to be a superconductor with TC of 62 K. Analysis of the superconducting state was performed within Eliashberg formalism, and HC( T), Δ( T), and TC( P) functions with a jump in the specific heat at critical temperature were calculated. Several other new thorium hydrides were predicted to be stable under pressure, including ThH3, Th3H10, ThH4, and ThH6. Thorium (which has s2 d2 electronic configuration) forms high- TC polyhydrides similar to those formed by s2 d1 metals (Y-La-Ac). Thorium belongs to the Mg-Ca-Sc-Y-La-Ac family of elements forming high- TC superconducting hydrides.
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126
Total citations:
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(37%)
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Kvashnin A. G. et al. High-Temperature Superconductivity in a Th–H System under Pressure Conditions // ACS applied materials & interfaces. 2018. Vol. 10. No. 50. pp. 43809-43816.
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Kvashnin A. G., Semenok D. V., Kruglov I. A., Wrona I. A., Oganov A. R. High-Temperature Superconductivity in a Th–H System under Pressure Conditions // ACS applied materials & interfaces. 2018. Vol. 10. No. 50. pp. 43809-43816.
Cite this
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TY - JOUR
DO - 10.1021/acsami.8b17100
UR - https://doi.org/10.1021/acsami.8b17100
TI - High-Temperature Superconductivity in a Th–H System under Pressure Conditions
T2 - ACS applied materials & interfaces
AU - Kvashnin, Alexander G.
AU - Semenok, Dmitry V.
AU - Kruglov, Ivan A.
AU - Wrona, Izabela A.
AU - Oganov, A. R.
PY - 2018
DA - 2018/12/04
PB - American Chemical Society (ACS)
SP - 43809-43816
IS - 50
VL - 10
PMID - 30512924
SN - 1944-8244
SN - 1944-8252
ER -
Cite this
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@article{2018_Kvashnin,
author = {Alexander G. Kvashnin and Dmitry V. Semenok and Ivan A. Kruglov and Izabela A. Wrona and A. R. Oganov},
title = {High-Temperature Superconductivity in a Th–H System under Pressure Conditions},
journal = {ACS applied materials & interfaces},
year = {2018},
volume = {10},
publisher = {American Chemical Society (ACS)},
month = {dec},
url = {https://doi.org/10.1021/acsami.8b17100},
number = {50},
pages = {43809--43816},
doi = {10.1021/acsami.8b17100}
}
Cite this
MLA
Copy
Kvashnin, Alexander G., et al. “High-Temperature Superconductivity in a Th–H System under Pressure Conditions.” ACS applied materials & interfaces, vol. 10, no. 50, Dec. 2018, pp. 43809-43816. https://doi.org/10.1021/acsami.8b17100.