Actinium Hydrides AcH10, AcH12, and AcH16 as High-Temperature Conventional Superconductors

doi:10.1021/acs.jpclett.8b00615

. 2018 Apr 19;9(8):1920-1926.

doi: 10.1021/acs.jpclett.8b00615. Epub 2018 Apr 3.

Actinium Hydrides AcH₁₀, AcH₁₂, and AcH₁₆ as High-Temperature Conventional Superconductors

Dmitrii V Semenok^{1

2}, Alexander G Kvashnin^{1

2}, Ivan A Kruglov^{2

3}, Artem R Oganov^{1

2

3

4}

Affiliations

¹ Skolkovo Innovation Center , Skolkovo Institute of Science and Technology , 3 Nobel Street , Moscow 143026 , Russian Federation.
² Moscow Institute of Physics and Technology , 9 Institutsky Lane , Dolgoprudny 141700 , Russian Federation.
³ Dukhov Research Institute of Automatics (VNIIA) , Moscow 127055 , Russian Federation.
⁴ International Center for Materials Discovery , Northwestern Polytechnical University , Xi'an 710072 , China.

PMID: 29589444
DOI: 10.1021/acs.jpclett.8b00615

Actinium Hydrides AcH₁₀, AcH₁₂, and AcH₁₆ as High-Temperature Conventional Superconductors

Dmitrii V Semenok et al. J Phys Chem Lett. 2018.

. 2018 Apr 19;9(8):1920-1926.

doi: 10.1021/acs.jpclett.8b00615. Epub 2018 Apr 3.

Authors

Dmitrii V Semenok^{1

2}, Alexander G Kvashnin^{1

2}, Ivan A Kruglov^{2

3}, Artem R Oganov^{1

2

3

4}

Affiliations

¹ Skolkovo Innovation Center , Skolkovo Institute of Science and Technology , 3 Nobel Street , Moscow 143026 , Russian Federation.
² Moscow Institute of Physics and Technology , 9 Institutsky Lane , Dolgoprudny 141700 , Russian Federation.
³ Dukhov Research Institute of Automatics (VNIIA) , Moscow 127055 , Russian Federation.
⁴ International Center for Materials Discovery , Northwestern Polytechnical University , Xi'an 710072 , China.

PMID: 29589444
DOI: 10.1021/acs.jpclett.8b00615

Abstract

The stability of numerous unexpected actinium hydrides was predicted via the evolutionary algorithm USPEX. The electron-phonon interaction was investigated for the hydrogen-richest and most symmetric phases: R3̅ m-AcH₁₀, I4/ mmm-AcH₁₂, and P6̅ m2-AcH₁₆. Predicted structures of actinium hydrides are consistent with all previously studied Ac-H phases and demonstrate phonon-mediated high-temperature superconductivity with T_C in the range of 204-251 K for R3̅ m-AcH₁₀ at 200 GPa and 199-241 K for P6̅ m2-AcH₁₆ at 150 GPa, which was estimated by directly solving the Eliashberg equation. Actinium belongs to the series of d¹ elements (Sc-Y-La-Ac) that form high- T_C superconducting (HTSC) hydrides. Combining this observation with previous predictions of p⁰-HTSC hydrides (MgH₆ and CaH₆), we propose that p⁰ and d¹ metals with low-lying empty orbitals tend to form phonon-mediated HTSC metal polyhydrides.

PubMed Disclaimer

Cited by

Materials by design at high pressures.
Xu M, Li Y, Ma Y. Xu M, et al. Chem Sci. 2021 Dec 9;13(2):329-344. doi: 10.1039/d1sc04239d. eCollection 2022 Jan 5. Chem Sci. 2021. PMID: 35126967 Free PMC article. Review.
Uranium polyhydrides at moderate pressures: Prediction, synthesis, and expected superconductivity.
Kruglov IA, Kvashnin AG, Goncharov AF, Oganov AR, Lobanov SS, Holtgrewe N, Jiang S, Prakapenka VB, Greenberg E, Yanilkin AV. Kruglov IA, et al. Sci Adv. 2018 Oct 12;4(10):eaat9776. doi: 10.1126/sciadv.aat9776. eCollection 2018 Oct. Sci Adv. 2018. PMID: 30333994 Free PMC article.
Corrections of Molecular Morphology and Hydrogen Bond for Improved Crystal Density Prediction.
Wang L, Zhang M, Chen J, Su L, Zhao S, Zhang C, Liu J, Chen C. Wang L, et al. Molecules. 2019 Dec 31;25(1):161. doi: 10.3390/molecules25010161. Molecules. 2019. PMID: 31906099 Free PMC article.
Upper limit of the transition temperature of superconducting materials.
Liu Y, Huang H, Yuan J, Zhang Y, Feng H, Chen N, Li Y, Teng J, Jin K, Xue D, Su Y. Liu Y, et al. Patterns (N Y). 2022 Oct 24;3(11):100609. doi: 10.1016/j.patter.2022.100609. eCollection 2022 Nov 11. Patterns (N Y). 2022. PMID: 36419453 Free PMC article.
Superconducting praseodymium superhydrides.
Zhou D, Semenok DV, Duan D, Xie H, Chen W, Huang X, Li X, Liu B, Oganov AR, Cui T. Zhou D, et al. Sci Adv. 2020 Feb 28;6(9):eaax6849. doi: 10.1126/sciadv.aax6849. eCollection 2020 Feb. Sci Adv. 2020. PMID: 32158937 Free PMC article.

See all "Cited by" articles

LinkOut - more resources

Full Text Sources
- American Chemical Society
Other Literature Sources
- scite Smart Citations
Research Materials
- NCI CPTC Antibody Characterization Program

Save citation to file

Email citation

Add to Collections

Add to My Bibliography

Your saved search

Create a file for external citation management software

Your RSS Feed

Actinium Hydrides AcH₁₀, AcH₁₂, and AcH₁₆ as High-Temperature Conventional Superconductors

Affiliations

Actinium Hydrides AcH₁₀, AcH₁₂, and AcH₁₆ as High-Temperature Conventional Superconductors

Authors

Affiliations

Abstract

Similar articles

Cited by

LinkOut - more resources

Full Text Sources

Other Literature Sources

Research Materials

Abstract

Similar articles

Cited by

Related information

LinkOut - more resources

Full Text Sources

Other Literature Sources

Research Materials