• DocumentCode
    3795941
  • Title

    Gamma-rays irradiation of YBaCuO

  • Author

    M. Timko;S. Matas;J. Kovac;V. Kavecansky;M. Zentkova;I. Sargankova;V. Bunda

  • Author_Institution
    Inst. of Exp. Phys., Slovak Acad. of Sci., Kosice, Czechoslovakia
  • Volume
    30
  • Issue
    2
  • fYear
    1994
  • Firstpage
    1184
  • Lastpage
    1186
  • Abstract
    A YBa/sub 2/Cu/sub 3/O/sub 7-x/ ceramic was sequentially irradiated with /sup 60/Co /spl gamma/-rays of 155.4 R/min in dose rate; up to the dose 5000 Gy at ambient temperature, AC susceptibility and magnetization were measured as a function of temperature and magnetic field, respectively. The transition to the superconducting state has decreased roughly linearly with radiation dose at a rate of 6.2*10/sup -4/ K/Gy probably as a consequence of the change of carrier concentration in CuO/sub 2/ planes. The intragrain critical current density has increased for lower and higher radiation doses. Formation of the extra centres of pinning by /spl gamma/ irradiation is suggested.
  • Keywords
    "Yttrium barium copper oxide","Superconducting transition temperature","Ceramics","Magnetization","Critical current density","Superconducting materials","Temperature dependence","Physics","Magnetic susceptibility","Magnetic field measurement"
  • Journal_Title
    IEEE Transactions on Magnetics
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.312237
  • Filename
    312237
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3795941