1. Home
    2. Journals
    3. Pramana – Journal of Physics
    4. Volume 29
    5. Issue 2

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/029/02/0000-0000

    • Keywords

       

      High temperature superconductors; enhancement in thermoelectric power

    • Abstract

       

      The absolute thermopower of single phase YBa2Cu3O7 and Y0.8Er0.2Ba2Cu3O7 has been measured in the range 250 K to the superconducting transition temperature. It is found that these compounds show a large enhancement of thermopower in the range 150 K down toTc. This enhancement shows a steep exponential drop as the temperature increases from the transition temperature. The temperature variation of the enhancement is too steep to be accounted for by electron-phonon or electron-local structural excitation mechanisms.

    • Author Affiliations

       

      R Srinivasan1 2 V Sankaranarayanan1 2 N P Raju1 2 S Natarajan2 U V Varadaraju2 G V Subba Rao2

      1. Department of Physics, Indian Institute of Technology, Madras - 600 036, India
      2. Material Science Research Centre, Indian Institute of Technology, Madras - 600 036, India

    • Dates

       
      Published
      August 1987
      Manuscript received
      25 June 1987

  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2022-2023 Indian Academy of Sciences, Bengaluru.

Contact | Site index