Thermoelectric powers of YBa2Cu3O7-δ and (La1-xSrx)2CuO4 single crystals have been studied systematically. Their magnitudes and temperature dependence are quite anisotropic. Within the CuO2 planes, they exhibit a positive broad maximum at 200≈300K and along the direction perpendicular to the CuO2 planes, they are positive and nearly T-linear. It is suggested that these characteristic behaviors of the thermoelectric powers are due to anomalous scattering of the conduction holes associated with the magnetic scattering by the Cu spins.
All Science Journal Classification (ASJC) codes
- 化學 (全部)