Hm. Luo et al., SYNTHESIS AND ELECTRIC PROPERTIES OF NEW CUPRATES (PB,CU,CD)(3)SR-2(ND,CE)(2)CU2OZ, Physica. C, Superconductivity, 282, 1997, pp. 871-872
The effects of Cd ion on the formation, electric properties and superc
onductivity of Pb-3222 phase Pb2Sr2(Nd,Ce)(2)Cu3O2 compounds have been
studied. It is found that Cd can enter into Pb or Cu sites to promote
the Pb-3222 phase formation, and improve the electric properties of s
amples. The location of Cd also affect the resistivity differently.