The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.
Synthesis and Stability of Lanthanum Superhydrides
Abstract
Recent theoretical calculations predict that megabar pressure stabilizes very hydrogen‐rich simple compounds having new clathrate‐like structures and remarkable electronic properties including room‐temperature superconductivity. X‐ray diffraction and optical studies demonstrate that superhydrides of lanthanum can be synthesized with La atoms in an fcc lattice at 170 GPa upon heating to about 1000 K. The results match the predicted cubic metallic phase of LaH 10 having cages of thirty‐two hydrogen atoms surrounding each La atom. Upon decompression, the fcc‐based structure undergoes a rhombohedral distortion of the La sublattice. The superhydride phases consist of an atomic hydrogen sublattice with H−H distances of about 1.1 Å, which are close to predictions for solid atomic metallic hydrogen at these pressures. With stability below 200 GPa, the superhydride is thus the closest analogue to solid atomic metallic hydrogen yet to be synthesized and characterized.
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Cites
Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system
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Potential high- T c superconducting lanthanum and yttrium hydrides at high pressure
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Superconductive sodalite-like clathrate calcium hydride at high pressures
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Cited by
Superconductivity at 250 K in lanthanum hydride under high pressures
Drozdov, A. P., Kong, P. P., Minkov, V. S., Besedin, S. P., Kuzovnikov, M. A., Mozaffari, S., Balicas, L., Balakirev, F. F., Graf, D. E., Prakapenka, V. B., et al. (2019) · Nature · doi:10.1038/s41586-019-1201-8 · Cited by 1,633
Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure
Kong, P., Minkov, V. S., Kuzovnikov, M. A., Drozdov, A. P., Besedin, S. P., Mozaffari, S., Balicas, L., Balakirev, F. F., Prakapenka, V. B., Chariton, S., et al. (2021) · Nature Communications · doi:10.1038/s41467-021-25372-2 · Cited by 528
The Quest for High-Temperature Superconductivity: Experimental Advances in Ternary Hydrides
Zhang, M., Guo, J., Wang, Y., Chen, S., Wu, X., Wei, J., Wang, H., & Huang, X. (2026) · Annalen der Physik · doi:10.1002/andp.202500476 · Cited by 2
Metadata
- Authors
- Geballe, Z. M., Liu, H., Mishra, A. K., Ahart, M., Somayazulu, M., Meng, Y., Baldini, M., & Hemley, R. J.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2017-12-15
- Volume
- 57
- Issue
- 3
- Pages
- 688-692
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2770282247
- Cited by
- 299
- References
- 21
- FWCI
- 21.48
- Type
- journal article
- Language
- en
- Open access
- closed
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- Geballe, Z. M., Liu, H., Mishra, A. K., Ahart, M., Somayazulu, M., Meng, Y., Baldini, M., & Hemley, R. J. (2018). Synthesis and Stability of Lanthanum Superhydrides. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201709970
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