Variation of Physical Properties ofBi1.6Pb0.5Sr1.9-yLayCu1.05Ozwith the La-Concentrationyacross the Superconducting-Nonsuperconducting Metal Boundary

Abstract
Experimental results on the variation of various physical properties in Bi 1.6 Pb 0.5 Sr 1.9- y La y Cu 1.05 O z with varying y through the superconducting and nonsuperconducting metallic phase boundary are presented. The magnetic susceptibility at fixed temperatures is monotonous functions of y . The Hall coefficient does not indicate even a weak tendency of the sign change at the boundary. The thermoelectric power has a systematic change with y and exhibits quite unusual behavior even in the nonsuperconducting metallic phase.