Anisotropic Diamagnetism of 110 K Bi-Pb-Sr-Ca-Cu-O

Abstract
The 110 K Bi compounds have been prepared by means of a Pb-doping technique. The 110 K phase was obtained in an almost single-phase form. The ac susceptibility of the pellet can be interpreted in terms of bulk and coupling contributions. The powdered specimen was molded in a Stycast 1266 under a 8.9 T magnetic field to align the sense of the c axis. We found that the ac susceptibility was very anisotropic with respect to the c axis.