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http://dx.doi.org/10.4313/JKEM.2002.15.8.736

Phase Intergrowth in the Syntheses of BSCCO Thin Films  

Park, No-Bong (Department of Electrical Engineering, Chungju National University)
Park, Yong-Pil (Department of Electrical & Electronic Eng., Dongshin University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.15, no.8, 2002 , pp. 736-741 More about this Journal
Abstract
Phase intergrowth some kinds of the $Bi_2Sr_2Ca_{n-1}Cu_nO_y$ phases is observed in the thin film fabrication at ultralow co-deposition with multi targets by means of ion beam sputtering. The molar fraction of the Bi2212 phase in the mixed crystal of the grown films is investigated as a function of the applied ozone pressure and the substrate temperature. The activation energy for the phase transformation from the Bi2201 to the Bi2212 is estimated in terms of the Avrami equation. This study reveals that the formation of a liquid phase contributes significantly to the construction of the Bi2212 phase in the thin films, differing from the bulk synthesis.
Keywords
Phase intergrowth; ion beam sputtering; Activation energy; Avrami equation;
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