Solid State Science and Technology, Vol. 18, No 2 (2010) 15-20

ISSN 0128-7389

Corresponding Author:



Amalina Syazana Adnan and R. Abd-Shukor

School of Applied Physics, Universiti Kebangsaan Malaysia,

43600 Bangi, Selangor, Malaysia



Yb substituted Tl-1212 type phase with nominal starting composition

Tl(Sr1.5Yb0.5)CayCu2O7-δ (y = 1.0, 1.2, 1.3 and 1.4) have been prepared and

characterized. The X-ray diffraction patterns indicate that the variation of nanosized

calcium oxide for y = 1.0 to 1.4 showed a dominant 1212 phase and the 1201 as the

minor phase. This system showed a metallic normal state behavior for all samples.

Scanning electron micrographs of fractured internal sections of all the samples showed

porous microstructure with grains of similar shapes and sizes.



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