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

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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.

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Ramasesha, S.K., Singh, A.K. Thermoelectric power of YBa2Cu3O7−δ under pressure up to 9 GPa. Bull. Mater. Sci. 14, 767–770 (1991). https://doi.org/10.1007/BF02744723

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