Properties of Bi-Sr-Ca-Cu-O highT c superconductor
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The effect of sintering in air and annealing in oxygen flow at various temperatures and times on the superconducting transition of Bi2Sr2Ca1Cu2O8 ceramic was studied. Samples sintered at 1138 K for 24 h in air and slowly-cooled to room temperature are single-phase with the highest zero resistivity temperature of 88 K. XRD pattern showed that the single-phase was characteristic of tetragonal structure witha=0.5398 nm andc=3.0620 nm. Both a.c. susceptibility and resistivity measurements give similar values for the onset (100 K) of superconducting transition.
KeywordsHighTc superconductor annealing conditions solid-state reaction structure resistivity a.c. susceptibility
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- Gadkari S C, Muthe K P, Gupta S K, Singh K D, Sabharwal S C and Gupta M K 1988Proc. of the Solid State Phys. Symp. C31 198Google Scholar
- Maeda H, Tanaka Y, Fukutomi M and Asano T 1988Jpn J. Appl. Phys. 27 L209Google Scholar
- Morris D E, Hultgren C T, Markelz A M, Wei J Y T, Asmar N G and Nickel J H 1989Phys. Rev. B39 6612Google Scholar
- Syono Y, Hiraga K, Kobayashi N, Kikuchi M, Kusaba K, Kajitani T, Shindi D, Hasaya S, Tokiwa A, Terada S and Muto Y 1988Jpn J. Appl. Phys. 27 L569Google Scholar
- Takayama-Muromachi E, Uchida Y, Ono A, Izumi F, Onoda M, Matsui Y, Kosuda K, Takekawa S and Kato K 1988Jpn J. Appl. Phys. 27 L365Google Scholar
- Tarascon J M, Le Page Y, Barboux P, Bagley B G, Greene L H, McKinnon W R, Hull G W, Giroud M and Hwang D M 1988Phys. Rev. B37 9382Google Scholar