• Thermoelectric power of YBa2Cu3O7−δ under pressure up to 9 GPa

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    • Keywords


      Thermoelectric power; quasi-hydrostatic pressure; hydrostatic pressure

    • Abstract


      Thermoelectric power (TEP) of two YBa2Cu3O7−δ compounds (with δ=0·17 and 0·21) was measured as a function of quasi-hydrostatic pressure up to 9GPa at 300K on samples with low porosity. In both cases TEP decreases with increasing pressure, at a rate ∼ 0·8 μVK−1/GPa. The data obtained under hydrostatic pressure up to 3 GPa are in good agreement with those under quasi-hydrostatic pressure. The TEP of both compositions is found to decrease linearly at a rate 0·8 μVK−1/GPa above 1·5 GPa.

    • Author Affiliations


      Sheela K Ramasesha1 A K Singh1

      1. Materials Science Division, National Aeronautical Laboratory, Bangalore - 560 017, India
    • Dates

  • Bulletin of Materials Science | News

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