TRANSPORT-PROPERTIES OF HGBACACUO(1223) POLYCRYSTALLINE SUPERCONDUCTORS

We report on the temperature (20-300 K) dependence of the resistivity, thermopower and thermal conductivity measurements of HgBaCaCuO(1223) polycrystalline superconductors with nominal composition Hg1.4Ba2Ca2CU 3O8+delta. We present some discussion of the precision and the origina lity of the measurement methods which are especially used to measure t he electrical resistivity and simultaneously the thermopower and the t hermal conductivity as a function of temperature. The superconductivit y fluctuation contributions to the transport properties of the materia ls are calculated and compared. The results are related to the 2D anis otropy of the crystallographic structure.