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    • Keywords


      Heat-treatment; site preferences

    • Abstract


      Mössbauer spectra of YBa2Cu2·85Fe0:15O7−d prepared using different heat treatment procedures have been obtained. The transition temperature varies from 23 to 53 K, depending on the procedure adopted for preparation. Associated with this are changes in the lattice structure. Mössbauer spectra reveal population of the four components and their relation to the decrease in the transition temperatures.

    • Author Affiliations


      S C Bhargava1 R Sharma1 J S Chakrabarty1 C V Tomy1 2 S K Malik1 2

      1. Nuclear Physics Division, Bhabha Atomic Research Centre, Bombay - 400 085, India
      2. Tata Institute of Fundamental Research, Bombay - 400 005, India
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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