Formation of highly textured BiSrCaCuO superconducting thick films by a rapid melting process

P. Prieto, G. Zorn, R. R. Arons, S. Thierfeldt, M. E. Gomez, B. Kabius, W. Sybertz, K. Urban

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13 Scopus citations

Abstract

We have prepared highly textured BiSrCaCuO thick films from mixtures of the oxides by a rapid melting process. Sample powders on (100)-MgO-substrates were melted within seconds and kept between 910 °C and 1050 °C for typically several minutes. The samples were then directly cooled to room temperature. The crystallization of Bi2Sr2CaCu2Ox and the formation of a (001) - texture was observed in situ with a high-temperature X-ray diffractometer. Resistivity measurements showed the film to exhibit a Tc of 70 K. Subsequent annealing steps in air between 850 °C and 885 °C raised Tc to 85 K. The critical current density as inferred from magnetization measurements is at least 103 A/cm2. Morphology and composition of the films were investigated by scanning electron microscopy and electron diffraction.

Original languageEnglish (US)
Pages (from-to)235-240
Number of pages6
JournalSolid State Communications
Volume69
Issue number3
DOIs
StatePublished - Jan 1989

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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