Hydrogen intercalation of compounds with FeSe and MoS2 layered crystal structures
- Autores: Burkhanov G.1, Lachenkov S.1, Kononov M.2, Vlasenko V.3, Mikhaylova A.1, Korenovsky N.1
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Afiliações:
- Baikov Institute of Metallurgy and Materials Sciences
- Prokhorov Institute of General Physics
- Lebedev Physical Institute
- Edição: Volume 8, Nº 5 (2017)
- Páginas: 759-762
- Seção: Modern Technologies of Preparation and Processing of Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/206870
- DOI: https://doi.org/10.1134/S2075113317050082
- ID: 206870
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Resumo
Two compounds with a layered structure of FeSe0.88 superconductor and MoS2 semiconductor are intercalated with molecular hydrogen (H2) and ionized hydrogen (H+) formed in a special ion source. In the case of FeSe0.88, intercalation with hydrogen ions causes a slight increase in the superconducting transition temperature of the compound. It is noteworthy that the temperature of the middle of superconducting transition Тcm of this system can be a little higher on account of magnetization of the FeSe ferromagnetic phase (in a field up to 0.1 T) being in the contact with it. Hydrogen intercalation of MoS2 is accompanied by an increase in the weight of the compound, and the lattice parameter c associated with the interlayer distance increases from 12.241(6) to 12.297(5) Å. At the same time, along with the existing van der Waals forces, one observes the emergence of Н bonds, which leads to the formation of MoS2H0.38 hydride and to an abrupt change in specific resistance (by an order of magnitude) relative to its value before hydrogen intercalation.
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Sobre autores
G. Burkhanov
Baikov Institute of Metallurgy and Materials Sciences
Autor responsável pela correspondência
Email: genburkh@imet.ac.ru
Rússia, Moscow, 119334
S. Lachenkov
Baikov Institute of Metallurgy and Materials Sciences
Email: genburkh@imet.ac.ru
Rússia, Moscow, 119334
M. Kononov
Prokhorov Institute of General Physics
Email: genburkh@imet.ac.ru
Rússia, Moscow, 119991
V. Vlasenko
Lebedev Physical Institute
Email: genburkh@imet.ac.ru
Rússia, Moscow, 119334
A. Mikhaylova
Baikov Institute of Metallurgy and Materials Sciences
Email: genburkh@imet.ac.ru
Rússia, Moscow, 119334
N. Korenovsky
Baikov Institute of Metallurgy and Materials Sciences
Email: genburkh@imet.ac.ru
Rússia, Moscow, 119334