Very thin yttrium barium copper oxide films made by coevaporation

Danerud, M., Nilsson, P.A., & Alarco, J. (1992) Very thin yttrium barium copper oxide films made by coevaporation. North-Holland.

Abstract

Superconducting YBa2Cu3O7 thin films with various thicknesses from 100 Å to 5000 Å were deposited on (100) SrTiO3 substrates with std. BaF2 coevaporation process. The films had crit. temps. of up to 93 K. The best crit. currents were 1 × 106 A/cm2 at 77 K and 3 × 107 A/cm2 at 4.2 K. The crit. current was generally higher for thinner films. Two different etching methods were used to pattern the films for jc measurements: Ar ion etching and EDTA wet etching. The wet etching was found to work well for thicker films (>1000 Å). For the thinner films, the ion etching process was preferred because of the reduced film surface degrdn. [on SciFinder(R)]

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ID Code: 64074
Item Type: Book
Additional Information: CAPLUS AN 1992:502031(Conference)
Keywords: superconductor barium copper yttrium oxide, film barium copper yttrium oxide, etching barium copper yttrium oxide
Divisions: Current > Institutes > Institute for Future Environments
Deposited On: 06 Nov 2013 22:56
Last Modified: 06 Nov 2013 22:56

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