Solid State Science and Technology, Vol. 19, No 1 (2011) 6-14
*Corresponding Author: firstname.lastname@example.org
EFFECT OF Zr ADDITION ON Bi1.6Pb0.4Sr2Ca2Cu3Oδ SUPERCONDUCTOR
H. Azhan*, F. Fariesha and S. Khalida
Universiti Teknologi Mara Pahang
26400 Bandar Jengka, Pahang, Malaysia
The effect of Zr doping on 2223 phase of BSCCO system with general formula of Bi1.6Pb0.4Sr2Ca2Cu3OδZrX has been studied via XRD and resistance measurement to determine its crystalline structure and critical temperature, TC respectively. All samples were prepared using conventional solid state reaction technique that involved a series of mixing and grinding. Generally, all samples exhibit metallic behaviour above TC onset (>108K except in x = 0.2 where TC onset ~ 80K). A single-step features was observed in all samples except in x = 0.15 and x = 0.2. The zero resistance temperature, TC(R=0) decreased as the content of Zr was increased with the Zr-free recorded the highest value at 100 K while the lowest TC(R=0) was recorded in x = 0.2 with 56 K. The ZrO2 was incorporated into the crystalline structure of BSCCO system in all samples except for x = 0.15 and x = 0.2. A few peaks of ZrO2 were detected in the samples. The volume for fraction of 2223:2212 in samples x =0.00 – x =0.10 is approximately 74:26 but drastically decreased to 38:72 in x = 0.15 and x = 0.20. The crystallographic structure remains in tetragonal form where a = b ≠ c. The c-lattice that plays an important role of superconducting properties was not significantly affected by the Zr addition up to x =0.10. However the c-lattice decreased in other samples.
 H. Maeda, Y. Tanaka, M. Fukutomi, and T. Asano. Jpn. J. Appl. Phys. 27 (1988) L209
 H. Azhan, K. Azman, and S. Y. S. Yusainee, Solid State Science and Technology, 17 (1) (2009) 215–221
 M.A. Subramanian, C.C. Tonardi, J.C. Calabrese, J. Gopalakrisnan, K.J. Morrissey, T.R. Askew, R.B. Flippen, U. Chowdry. and A.W. Sleight, Nature, 239 (1988) 1015
 R. K. Nkum, J. Mat. Sci. 33 (1998) 207 - 210
 Z. Y. Jia, H. Tang, Z. Q. Yang, Y. T. Xing, Y. Z. Wang, and G. W. Qiao, Physica C, 337 (2000) 130 – 32.
 M. Zouaoui, A. Ghattas, M. Annabi, F. Ben Azzouz, and M. Ben Salem, Supercond. Sci. Technol. 21 (2008) 125005
 D. Pandey, R. Mahesh, A. Singh, V. Tiwari, and S. Kak, Solid State Commun. 76 (1990) 655
 D. Pandey, A. Singh, R. Mahesh, and V. Tiwari, Physica C, 173 (1991) 476
 S. Green, Yu Mei, A. Manzi, H. Luo, R. Ramesh, G. Thomas, J. Appl. Phys., 66 (1989) 728
 R.K. Nkum, W.R. Datars, Supercond. Sci. Technol. 8 (1995) 822
 R. C. Dynes, A. E. White, J. M. Graybeal, and J. P. Garno, Phys. Rev. Lett., 57 (1986) 2195
 J. M. Graybeal, and M. A. Beasley, Phys. Rev. B, 29 (1984) 4167.
 A. E. White, R. C. Dynes, and J. P. Garno, Phys. Rev. B, 33 (1986) 3549
 H. M. Jaeger, D. B. Haviland, A. M. Goldman, and B. G. Orr, Phys. Rev. B, 34