Neutron diffraction study of 152Sm, 154Sm and 63Cu isotope-substituted SmBa2Cu3O7 from 1.5 K to 300 K

Vitali Trunov, Yu Kaganovich, A. Kurbakov, A. Matveev, A. Sovestnov, A. Hewat, P. Fischer, Olli Antson, R. Maayouf

    Research output: Contribution to journalArticleScientificpeer-review

    15 Citations (Scopus)

    Abstract

    The temperature dependence of the structure of the high temperature superconducting ceramic SmBa2Cu3O7 with Tc=92 K was investigated in the temperature range from 1.5 K to 300 K, using neutron diffraction measurements on a powder sample with the MiniSfinks, D2B and DMC diffractometers.
    The sensitivity of the experiment for the oxygen and barium substructures was increased by using a mixture of 152Sm, 154Sm and 63Cu isotopes. The role of bounds such as Cu-O, of CuO2 and Ba-O plane distortions, order-disorder phenomena due to oxygen as well as the possibility that Sm exists in a mixed valence state, are discussed.
    Original languageEnglish
    Pages (from-to)415-424
    JournalPhysica C: Superconductivity and its Applications
    Volume194
    Issue number3-4
    DOIs
    Publication statusPublished - 1992
    MoE publication typeA1 Journal article-refereed

      Fingerprint

    Cite this

    Trunov, V., Kaganovich, Y., Kurbakov, A., Matveev, A., Sovestnov, A., Hewat, A., Fischer, P., Antson, O., & Maayouf, R. (1992). Neutron diffraction study of 152Sm, 154Sm and 63Cu isotope-substituted SmBa2Cu3O7 from 1.5 K to 300 K. Physica C: Superconductivity and its Applications, 194(3-4), 415-424. https://doi.org/10.1016/S0921-4534(05)80023-1