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

ISSN 0128-7389

Corresponding Author: ras@pkrisc.cc.ukm.my

15

EFFECTS OF NANO CaO IN Tl(Sr1.5Yb0.5)CayCu2O7-δ SUPERCONDUCTOR

Amalina Syazana Adnan and R. Abd-Shukor

School of Applied Physics, Universiti Kebangsaan Malaysia,

43600 Bangi, Selangor, Malaysia

 

ABSTRACT

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.

 

http://journal.masshp.net/wp-content/uploads/Journal/2010/Jilid%202/Amalina%20Syazana%20Adnan%2015-20.pdf

 

REFERENCES

[1]. S. Nakajima, M. Kikuchi, Y. Syono, N. Kobayashi and Y. Muto. (1990).

Physica C 168, 57-62.

[2]. Z. Y. Chen, Z. Z. Sheng, Y. Q. Tsang, Y. F. Li and D. O. (1992). Solid State

Commun. 83 (11), 895-898.

[3]. W. H. Lee and B. C. Huang. (1997). Physica C 289, 114-122.

[4]. R. S. Liu, Y. T. Huang, W. H. Lee, S. F. Fu and P. T. Wu. (1988). Physica C

156, 791-794.

[5]. A. K. Ganguli, K. S. Nanjundaswamy and C. N. R. Rao. (1988). Physica C 156,

788-790.

[6] R Abd-Shukor and Andrew Das Arulsamy. (2000). J. Phys. D: Applied Physics

33 836-839.

[7]. A.K. Yahya, W.F. Abdullah, H. Imad and M.H. Jumali. (2007). Physica C

Superconductivity, 463-465 474-477.

[8]. A. Kamal Yahya, Z. Salleh, and M. Hafiz-Jumali. (2007). In AIP Conference

Proc., 909, 265-268.

[9]. Yusof M.I.; Salleh Z.; Yahya A.K.; Jumali M.H. (2009). Materials Research

Innovations, 13, 3, 364-367(4).