Properties of Bi-Sr-Ca-Cu oxide films produced by laser ablation deposition

G.N.A. van Veen, R.P. Van Ingen, T.S. Baller, J. Aarts, Guo Shu-Quan, C.F.J. Flipse, J.G. Lensink, C.W. Hagen, R. Griessen

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Thin films of the Bi-Sr-Ca-Cu-oxides, produced by means of laser ablation deposition are superconducting after post-annealing. For films on (100) SrTiO3 the onset of the transition is at around 96 K and zero resistance is achieved at 77 K. The layers are highly oriented but often multiphase. Depending on the composition of the target material and annealing temperature, two major phases are formed with apparent "c" lattice distances of n × 12.2 Å and 30.7 Å respectively. The former shows a semiconductor-type resistance behaviour, while the latter has a metallic behaviour and can be identified as the low-Tc (81 K) Bi-Sr-Ca-Cu-oxides superconducting phase. To characterize the films' resistance [R(T)], critical current [Ic(T)] measurements and several types of magnetic measurements have been performed.

Original languageEnglish
Pages (from-to)99-107
Number of pages9
JournalPhysica C : Superconductivity
Issue number1
Publication statusPublished - 1 Jan 1989
Externally publishedYes


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