B. Chanda et al., NORMAL-STATE THERMOELECTRIC-POWER OF VANADIUM-SUBSTITUTED (BI0.8PB0.2-YVY)2SR2CA2CU3OX SUPERCONDUCTING PELLETS, Physica. C, Superconductivity, 232(1-2), 1994, pp. 136-144
The temperature dependence of vanadium-substituted (Bi0.8Pb0.2-yVy)2Sr
2Ca2Cu3O(x) samples with 0<y<0.075 is reported between T(co) and 300 K
. Thermoelectric power of all the samples was found to be positive and
to increase approximately linearly with decrease of temperature up to
about 120 K, before falling to zero at T(co). The measured data have
been analysed on the basis of three relevant theoretical models and fr
om which we conclude that the temperature variation of TEP of pure and
vanadium-substituted (Bi-Pb) cuprates could be explained extremely we
ll (within 1%) according to the expression proposed by Forro et al. us
ing a modified two-band model.