We report measurements of absolute thermoelectric power and resistivity in PrxY1-xBa2Cu3O7-δ, as function of x and δ, over a wide temperature range. At high temperature, the substitution of Pr for Y does not affect the thermopower and resistivity; Pr behaves then as a trivalent ion: Pr3+. For small x and δ the effects of substitution of Y by Pr and of oxygen deficiency on the low-temperature resistivity are additive. A simple electronic-structure model is proposed to account for thermopower as function of temperature, x, and δ.
Fisher, B.; Genossar, J.; Patlagan, L.; and Ashkenazi, J., "Resistivity and Thermoelectric-Power Measurements of PrxY1-xBa2Cu3O7-δ up to 1200 K and an Electronic-Structure Analysis" (1991). Physics Articles and Papers. 39.