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Lanthanum decahydride

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Lanthanum decahydride
Identifiers
3D model (JSmol)
  • InChI=1S/La.10H
    Key: WKJDXOLLSPZSBN-UHFFFAOYSA-N
  • [LaH10]
Properties
H10La
Molar mass 148.985g·mol−1
Structure
Cubic
Fm3m
a= 5.1019(5) Å
at 150 GPa
132.80(4) Å3
Except where otherwise noted, data are given for materials in theirstandard state(at 25 °C [77 °F], 100 kPa).

Lanthanum decahydrideis apolyhydrideor superhydride compound oflanthanumand hydrogen (LaH10) that has shown evidence of being a high-temperaturesuperconductor.It was the first metal superhydride to be theoretically predicted,[2][3]synthesized,[4]and experimentally confirmed[5]to superconduct at near room-temperatures. It has a superconducting transition temperature TCaround 250 K (−23 °C; −10 °F) at a pressure of 150 gigapascals (22×10^6psi), and its synthesis required pressures above approximately 160 gigapascals (23×10^6psi).[6][7]

Synopsis

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Since its discovery in 2019,[8]the superconducting properties of LaH10and otherlanthanum-based superhydrides have been experimentally confirmed in multiple independent experiments.[9][10][11][12]The compound exhibits aMeissner effectbelow the superconducting transition temperature.[13]A cubic form can be synthesized at 1,000 K (730 °C; 1,340 °F),[6]and a hexagonal crystal structure can be formed at room temperature.[14]Further reports indicate Tcis increased withnitrogendoping,[15]and decreased with the introduction of magnetic impurities.[16]

The cubic form has each lanthanum atom surrounded by 32 hydrogen atoms, which form the vertices of an 18-faced shape called achamfered cube.[17]

A similar compound,lanthanum boron octahydride,was computationally predicted to be a superconductor at 126 K (−147 °C; −233 °F) and pressure 50 gigapascals (7.3×10^6psi).[18]

References

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  1. ^"Lanthanum decahydride".American Chemical Society.
  2. ^Peng, Feng; Sun, Ying; Pickard, Chris J.; Needs, Richard J.; Wu, Qiang; Ma, Yanming (2017-09-08)."Hydrogen Clathrate Structures in Rare Earth Hydrides at High Pressures: Possible Route to Room-Temperature Superconductivity".Physical Review Letters.119(10): 107001.Bibcode:2017PhRvL.119j7001P.doi:10.1103/PhysRevLett.119.107001.PMID28949166.
  3. ^Liu, Hanyu; Naumov, Ivan I.; Hoffmann, Roald; Ashcroft, N. W.; Hemley, Russell J. (2017-07-03)."Potential high- T c superconducting lanthanum and yttrium hydrides at high pressure".Proceedings of the National Academy of Sciences.114(27): 6990–6995.doi:10.1073/pnas.1704505114.ISSN0027-8424.PMC5502634.PMID28630301.
  4. ^Geballe, Zachary M.; Liu, Hanyu; Mishra, Ajay K.; Ahart, Muhtar; Somayazulu, Maddury; Meng, Yue; Baldini, Maria; Hemley, Russell J. (2018-01-15)."Synthesis and Stability of Lanthanum Superhydrides".Angewandte Chemie.130(3): 696–700.Bibcode:2018AngCh.130..696G.doi:10.1002/ange.201709970.ISSN0044-8249.
  5. ^Somayazulu, Maddury; Ahart, Muhtar; Mishra, Ajay K.; Geballe, Zachary M.; Baldini, Maria; Meng, Yue; Struzhkin, Viktor V.; Hemley, Russell J. (2019-01-14)."Evidence for Superconductivity above 260 K in Lanthanum Superhydride at Megabar Pressures".Physical Review Letters.122(2): 027001.arXiv:1808.07695.Bibcode:2019PhRvL.122b7001S.doi:10.1103/PhysRevLett.122.027001.PMID30720326.
  6. ^abDrozdov, 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.; Greenberg, E.; Knyazev, D. A.; Tkacz, M.; Eremets, M. I. (2019). "Superconductivity at 250 K in lanthanum hydride under high pressures".Nature.569(7757): 528–531.arXiv:1812.01561.Bibcode:2019Natur.569..528D.doi:10.1038/s41586-019-1201-8.PMID31118520.S2CID119231000.
  7. ^M. Kostrzewa; K. M. Szczęśniak; A. P. Durajski; R. Szczęśniak (31 January 2020)."From LaH10to room–temperature superconductors ".Scientific Reports.10(1): 1592.arXiv:1905.12308.Bibcode:2020NatSR..10.1592K.doi:10.1038/s41598-020-58065-9.PMC6994605.PMID32005852.
  8. ^Somayazulu, Maddury; Ahart, Muhtar; Mishra, Ajay K.; Geballe, Zachary M.; Baldini, Maria; Meng, Yue; Struzhkin, Viktor V.; Hemley, Russell J. (2019-01-14)."Evidence for Superconductivity above 260 K in Lanthanum Superhydride at Megabar Pressures".Physical Review Letters.122(2): 027001.arXiv:1808.07695.Bibcode:2019PhRvL.122b7001S.doi:10.1103/PhysRevLett.122.027001.PMID30720326.
  9. ^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.; Greenberg, E.; Knyazev, D. A.; Tkacz, M.; Eremets, M. I. (May 2019)."Superconductivity at 250 K in lanthanum hydride under high pressures".Nature.569(7757): 528–531.arXiv:1812.01561.Bibcode:2019Natur.569..528D.doi:10.1038/s41586-019-1201-8.ISSN0028-0836.PMID31118520.S2CID119231000.
  10. ^Hong, Fang; Yang, Liuxiang; Shan, Pengfei; Yang, Pengtao; Liu, Ziyi; Sun, Jianping; Yin, Yunyu; Yu, Xiaohui; Cheng, Jinguang; Zhao, Zhongxian (2020-10-01)."Superconductivity of Lanthanum Superhydride Investigated Using the Standard Four-Probe Configuration under High Pressures*".Chinese Physics Letters.37(10): 107401.Bibcode:2020ChPhL..37j7401H.doi:10.1088/0256-307X/37/10/107401.ISSN0256-307X.S2CID250921188.
  11. ^Semenok, Dmitrii V.; Troyan, Ivan A.; Ivanova, Anna G.; Kvashnin, Alexander G.; Kruglov, Ivan A.; Hanfland, Michael; Sadakov, Andrey V.; Sobolevskiy, Oleg A.; Pervakov, Kirill S.; Lyubutin, Igor S.; Glazyrin, Konstantin V.; Giordano, Nico; Karimov, Denis N.; Vasiliev, Alexander L.; Akashi, Ryosuke (2021-09-01)."Superconductivity at 253 K in lanthanum–yttrium ternary hydrides".Materials Today.48:18–28.arXiv:2012.04787.doi:10.1016/j.mattod.2021.03.025.ISSN1369-7021.
  12. ^Semenok, Dmitrii V.; Troyan, Ivan A.; Sadakov, Andrey V.; Zhou, Di; Galasso, Michele; Kvashnin, Alexander G.; Ivanova, Anna G.; Kruglov, Ivan A.; Bykov, Alexey A.; Terent'ev, Konstantin Y.; Cherepakhin, Alexander V.; Sobolevskiy, Oleg A.; Pervakov, Kirill S.; Seregin, Alexey Yu.; Helm, Toni (October 2022)."Effect of Magnetic Impurities on Superconductivity in LaH 10".Advanced Materials.34(42): e2204038.arXiv:2203.06500.Bibcode:2022AdM....3404038S.doi:10.1002/adma.202204038.ISSN0935-9648.PMID35829689.S2CID247447065.
  13. ^Eremets, M. I.; Minkov, V. S.; Drozdov, A. P.; Kong, P. P.; Ksenofontov, V.; Shylin, S. I.; Bud'ko, S. L.; Prozorov, R.; Balakirev, F. F.; Sun, Dan; Mozzafari, S.; Balicas, L. (10 January 2022)."High‑Temperature Superconductivity in Hydrides: Experimental Evidence and Details".Journal of Superconductivity and Novel Magnetism.35(4): 965–977.arXiv:2201.05137.doi:10.1007/s10948-022-06148-1.
  14. ^Geballe, Zachary M.; Liu, Hanyu; Mishra, Ajay K.; Ahart, Muhtar; Somayazulu, Maddury; Meng, Yue; Baldini, Maria; Hemley, Russell J. (15 January 2018). "Synthesis and Stability of Lanthanum Superhydrides".Angewandte Chemie International Edition.57(3): 688–692.doi:10.1002/anie.201709970.PMID29193506.
  15. ^Ge, Yanfeng; Zhang, Fan; Hemley, Russell J. (2021-12-15)."Room-temperature superconductivity in boron- and nitrogen-doped lanthanum superhydride".Physical Review B.104(21): 214505.arXiv:2012.13398.Bibcode:2021PhRvB.104u4505G.doi:10.1103/PhysRevB.104.214505.S2CID229371105.
  16. ^Sanner, T. (1975-11-18)."Formation of transient complexes in the glutamate dehydrogenase catalyzed reaction".Biochemistry.14(23): 5094–5098.doi:10.1021/bi00694a011.ISSN0006-2960.PMID39.
  17. ^"NNNS chemistry blog: Lanthanum decahydride".chem.vander-lingen.nl.
  18. ^Di Cataldo, Simone; Heil, Christoph; von der Linden, Wolfgang; Boeri, Lilia (2021-07-29). "BH8:Towards high-Tclow-pressure superconductivity in ternary superhydrides ".Physical Review B.104(2): L020511.arXiv:2102.11227.Bibcode:2021PhRvB.104b0511D.doi:10.1103/PhysRevB.104.L020511.S2CID242872381.
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