Av. Pop et al., PARACONDUCTIVITY AND HALL-EFFECT MEASUREMENTS IN THE SUPERCONDUCTING (BIPB)(2)(SRBA)(2)CA-2(CU1-XCX)(3)O-Y, International journal of modern physics b, 9(6), 1995, pp. 695-705
The effect of the Cu substitution by Cc in the ''2223'' superconductor
was studied by resistivity and Hall effect measurements. The excess c
onductivity was analyzed by using the linear and Zou-Anderson extrapol
ation methods on the electrical resistivity. A crossover temperature i
s observed only for the x = 0 sample. The sheet hole concentration per
Cu-site, n(H)V(cell) is found to vary linearly with the temperature f
or all Cr doped samples in the 170-265 K temperature range. Deviations
from linearity in the T-2 dependence of the inverse Hall mobility abo
ve 250 K were evidenced.