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Tailored High-Tc Superconducting Thin Films Prepared by Layer-By-Layer Deposition with Excimer Laser

  • Tomoji Kawai (a1), Masaki Kanai (a1), Hitoshi Tabata (a1) and Shichio Kawai (a1)


By using 1ayer-by-1ayer successive deposition method with excimer laser ablation, the distance between CuO2 planes in the Bi2Sr2Ca1Cu2Oy superconductor has been controlled and super lattices with concentration modulation of Y and Ca have been formed. From the properties of these ‘Tailored films’, it is suggested that there is an interaction between CuO2 layers across Ca layer to affect the Tc value, but there is a very weak interaction across Bi2O2 blocking layers.



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1 Kanai, M., Kawai, T., Kawai, S. and Tabata, H., Appl.Phys.Lett., 54, 1802 (1989).
2 Tabata, H., Kawai, T., Kanai, M., Murata, O. and Kawai, S., Jpn. J. Appl. Phys., 28, L823(1989).
3 Kanai, M., Kawai, T., Kawai, M. and Kawai, S., Jpn. J. Appl. Phys., 27, L1293 (1988).


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