Thermogravimetry and neutron thermodiffractometry studies of the H-YBa2Cu3O7 system.

D. Fruchart, J.L. Soubeyroux, D. Tran qui, C. Pique, C. Rillo, F. Lera, V. Orera, Jakob Flokstra, David H.A. Blank

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Abstract

The high Tc superconducting oxide YBa2Cu3O7¿x reacts with hydrogen gas. Thermogravimetric, X-ray and neutron scattering experiments allow us to propose a two-step type of hydrogen bonding. Firstly, a few hydrogen atoms fill some oxygen vacancies and may favourably modify the electron state, giving rise to a slight increase in the critical temperature. Secondly, after a prolonged heating period, the collapse of the YBa2Cu3O7¿x type framework and of superconductivity were observed, and a new, highly hydrogenated material appeared.
Original languageUndefined
Pages (from-to)233-244
Number of pages12
JournalJournal of the less-common metals
Volume0
Issue number157
DOIs
Publication statusPublished - 1990

Keywords

  • METIS-129137
  • IR-24337

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