Abstract
The temperature dependence of the thermoelectric power (TEP) of Bi 2 − x Pb x Sr 2Ca 2 Cu 3O 10 + δ pellets with 0 < x < 0.5 is reported between T CO and 300 K. The thermoelectric power values of all the samples were found to be positive and to increase almost linearly ( dS dT = −0.030 μ VK −2 ) with decrease in temperature down to ≈120 K, before falling rapidly to zero at T CO . The results are analysed on the basis of different theoretical models and it is concluded that the measured TEP data could be explained extremely well (within 1%) using the modified two-band model proposed by Forro et al.
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