TRANSPORT-PROPERTIES OF HIGH-TC SUPERCONDUCTING OXIDES

[[abstract]]The transport and magnetic properties of the (La1-xAx)2CuO4 system are investigated systematically over the composition range from x=0 to 0.1. The change in the resistivity and magnetic susceptibility with alkaline metals and alkali earth metals substitution seems to be consistent with the band picture with nesting Fermi surface. However, the result for the Seebeck coefficient suggests the possibility of a strongly correlated electron system, casting a question about the simple SDW picture. The similar feature in the Seebeck coefficient is also observed in the Ba2YCu3O7-y system.[[fileno]]2010113010070[[department]]物理