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Effect of Nano Ag Addition on Critical Temperature and Phase Formation of(Tl0.85Cr0.15)Sr2CaCu2O7-δ Superconductors

Kong, W., and Koh, A.K., and Abd-Shukor R., (2009) Effect of Nano Ag Addition on Critical Temperature and Phase Formation of(Tl0.85Cr0.15)Sr2CaCu2O7-δ Superconductors. Sains Malaysiana , 38 (3). pp. 419-422. ISSN 01266039

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Official URL: http://pkukmweb.ukm.my/~jsm/pdf_files/SM-PDF-38-3-2009/19%20W.%20Kong.pdf

Affiliations

Universiti Kebangsaan Malaysia, School of Applied Physics
Universiti Kebangsaan Malaysia, School of Applied Physics
Universiti Kebangsaan Malaysia, School of Applied Physics

Abstract

The Tl1212 type phase high temperature superconductor (Tl0.85Cr0.15)Sr2CaCu2O7-Agx with x = 0.0, 0.01, 0.02, 0.03 and 0.05 have been prepared through the solid-state reaction method. Samples were characterized by the four-point probe method for electrical resistance. The results show that the onset critical temperature, Tc-onset of the non-added sample is 113 K. The addition of nano Ag decreased the critical temperature. X-ray diffraction patterns showed that the Tl1212 phase is dominant in all samples. Sample with x = 0.02 has the highest percent of the example of Tl1212 phase, which is 87%.

Item Type:Journal
Keywords:Critical temperature; nano Ag; Tl1212 superconductor
Subjects:Q Science, Computer Science
ID Code:8189

1. Abd. Shukor, R. & Lo, S.V. 2001. Effect of Zn and Mn Substitutions on the Formation and Superconductivity of Tl-1212 Type Phase (Tl0.85Cr0.15)Sr2CaCu2O7. Journal of Materials Science Letters 20: 159-161.

2. Abd. Shukor, R. & Nik Jaafar, N.A. 1999. Formation and Superconductivity of Pr and Nd-substituted Tl-1212 Phase (Tl0.85Cr0.15)Sr2CaCu2O7. Journal of Materials Science 10: 677-681.

3. Batlogg, B. & Varma, C.M. 2000. The Underdoped Phasa of Cuprate Superconductirs. Physics World 13(2): 33-38.

4. Chan Park, Sayya, S.S., Sviram, D. & Zinder, R.L. 1995. Effect of Silver Addition on the Processing of (Tl0.5Pb0.5)Sr2CaCu2O7. Journal of Applied Superconductivity 3: 139-146.

5. Eder, M. & Gritzner, G. 2005. Thallium-based Cuprate Superconductors Doped with Rare Earth Oxides. Superconductor Science and Technology 18: 87-91.

6. Guo, Y.C., Liu, H.K. & Dou, S.X. 1993. Silver-doped (Bi, Pb)2Sr2Ca2Cu3O10/Ag High-temperature Superconductivity Composites. Physica C 215: 291-296.

7. Hari Babu, N., Lida, K. & Dardwell, D.A. 2007. Flux Pinning in Melt-processed Nanocomposite Single Grain Superconductors. Superconductor Science & Technology 20: S141-S146.

8. Iqbal, Z., Ramakrishna, B.L. & Barry, J.C. 1990. Synthesis, Microstucture and Superconducting Properties of Ce-doped Tl-Sr Ca-Cu-O. Physica C 196: 396-400.

9. Karaca, I., Celebi, S., Vaviki, A. & Malik, A.I. 2003. Effect of Ag2O Addition on the Intergranular Properties of the Superconductivity Bi-(Pb)-Sr-Ca-Cu-O System. Superconductor Science and Technology 16: 100-104.

10. Kao, Y.H., Yao, Y.D., Jang, L.Y, Xu, F., Krol, A., Song, L.W., Sher, C.J., Daravsky, A., Philips, J.C., Simmuns, J.J. & Snyder, R.L. 1990. Effects of Silver Doping in the High-T Superconductor System Y-Ba-Cu-O. Journal of Applied Physics 67: 355-361.

11. Letouze, F., Hervieu, M., Martin, C., Maignan, A. & Raveau, B. 1998. Local Ordering of the Chromate Groups in the “1212” Superconductor Tl0.9(CrO4)0.2Sr2Ca0.9Cu2O6.2-∂. Physica C 296: 195-204.

12. Lee, W.H. & Huang, B.C. 1997. Changes in Doping State of Tl(Sr2-xRx)CaCu2O7-∂ (R=Sm, Eu, Dy) system. Physica C 289: 114-122.

13. Li, Y.F., Chmaissem, O. & Sheng, Z.Z. 1995. Crystal Structure and Tc of 1212-type Cuprate (Tl,Cr)Sr2(Ca, Tl)Cu2O7, Physica C 248: 42-48.

14. Ren, Y., Meng, J., Niu, M. & Zeng, Z. 1990. Structure and Superconductivity for YBa2Cu3O7-Agx. Solid State Communications 76: 1103-1105.

15. Saito, Y., Noji, T., Endo, A., Niguchi, Ni, Fujimoto, K., Oikawa, T., Hattori, A. & Furuse, K. 1987. Composition Dependence of Superconductivity in Y-Ba-(Ag,Co)-O system. Japanese Journal of Applied Physics 26: L832-L833.

16. Savvides, N. Katsaros, A. & Dou, S.X. 1991. Critical Current Density and Flux Pinning in Silver/superconductor Composites and Tapes. Physica C 179: 361-368.

17. Wu, N.L. & Chang, Y.C. 1990. Silver-enhanced Syntesis of YBa2Cu3O7-x. Japanese Journal of Applied Physics 29: L563-L565.

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