Electrical conductivity and thermoelectric power of CaTiO ₃ at n – p transition

AbstractThe effect of oxygen activity on electrical conductivity and thermoelectric power for CaTiO3 is determined within the n–p transition. The oxygen activity related to the n–ip transition point, which is determined from the minimum of the electrical conductivity and the zero value of thermoelectric power, exhibits a discrepancy. The discrepancy is considered in terms of the different mobilities of electrons and electron holes. The mobility ratio determined in the present work in the temperature range 1173–1323 K varies between 1·1 and 2·7.Keywords: CALCIUM TITANATECHARGE TRANSPORTELECTRICAL PROPERTIES Notes† *This project has been performed as part of R&D programme on solar hydrogen.