Reasonably large crystals (several mm size) of T12Ba2CuO 6 (referred as "1"1-2201) were grown by a self-flux technique. T o's were altered by annealing the crystals in different atmospheres and at different temperatmes. As the oxygen content increased, the T c decreased from 90 K to 0 K. The anisotropic resistivities Pab (along abplane) and Pc (along c-axis) were measured on these crystals by Montgomery method. Pc was found to be 2-3 orders of magnitude greater than Pab. The anisotropy ratio (pc/Pab) increases with T c. For higher T c crystals, the superconducting and the normal state properties of Pab can be explained by the nested Fermi surface behavior with a T-devj~endence of the in-plane resistivities. For lower T c crystals, the normal Fermi liquid picture emerges from the T -dependence of the in-plane resistivities. Unlike YBa2Cu30 7, Bi-2212, and other copper oxide superconductors, Pc for TI-2201 crystals is metal-like. The paraconductivity data shows that T1-2201 is a twodimensional superconductor. The c-axis Seebeck coefficients ate observed to be p-type for all crystals in the whole temperature range studied whereas some of the corresponding ab-plane Seebeck coefficients change sign from n-type to p-type and some are n-type down to T c. The thermopower behavior is still theoretically unclear.
* We gratefully acknowledge the support of the Office of Naval Research under ONR grant number N00014-90-J-1571.