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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/030/05/0419-0421

    • Keywords

       

      High temperature superconductors; Y-Ba-Cu-O system; specific heat

    • Abstract

       

      The specific heat of superconducting oxide compound, YBa2Cu3O7 −x, is studied using a quasi-adiabatic calorimeter from 4.2 to 60 K. The analysis of the specific heat data below 15 K gives a value of 17 mJ/mole K2 for the electronic heat capacity coefficient. The value ofθD(0) is determined to be 397±8 K. The variation ofθD with temperature was calculated in the temperature range 4.2 to 60 K.

    • Author Affiliations

       

      N Sankar1 2 V Sankaranarayanan1 R Srinivasan1 G Rangarajan1 G V Subba Rao1 3

      1. Department of Physics, Indian Institute of Technology, Madras - 600 036, India
      2. Systems Engineering Division, National Aeronautical Laboratory, Bangalore - 560 017, India
      3. Materials Science Research Centre, Indian Institute of Technology, Madras - 600 036, India

    • Dates

       
      Published
      May 1988
      Manuscript received
      10 February 1988

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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