• T R Ravindran

      Articles written in Pramana – Journal of Physics

    • Thermal conductivity of YBa2Cu3O7 from 7 K to 260 K

      T R Ravindran V Sankaranarayanan R Srinivasan

      More Details Abstract Fulltext PDF

      Thermal conductivity of YBa2Cu3O7 has been measured on samples of a few mm thickness. AboveTc thermal conductivity is found to decrease with increase in temperature, pointing towards a contribution to thermal resistivity from three-phonon Umklapp processes. BelowTc thermal conductivity increases rapidly before reaching a maximum at about 50 K and then falls towards zero at lower temperatures. The experimental set up is described and results discussed.

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