Research PapersNo Access
TRANSPORT PROPERTIES AND AC SUSCEPTIBILITIES OF (Bi1.6Pb0.4)(Sr1.8Ba0.2)Ca2(Cu1–xNix)3Oy SUPERCONDUCTOR
https://doi.org/10.1142/S0217979296000386Cited by:12 (Source: Crossref)
Abstract
The effect of the partial substitution of Cu by Ni in the stabilized 108 K phase was investigated by electrical resistance and a.c. susceptibility measurements. Up to a Ni concentration x = 0.02 the bending of the R (T) curve above Tc can be described in the terms of the Lawrence-Doniach theory. The intergrain and intragrain critical transition temperatures decrease to ∆TCG = 9 K and ∆Tj = 10.9 K respectively by the Ni substitution in the Cu-O pyramids.
PACS: 74.72 Hs, 74.62 Dh, 74.25 Fy, 74.40 +k, 74.25 Ha
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