Reactive deposition of Y1Ba2Cu3O7 −x superconductor films by pulsed laser ablation from an unreacted mixture of Y2O3, BaCO3 and CuO |
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| Authors: | R D Vispute R R Rao Sucheta Gorwadkar S A Gangal S B Ogale |
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| Affiliation: | (1) Department of Physics, Centre for Advanced Studies in Materials Science and Solid State Physics, 411 007 Pune, India;(2) Department of Electronics Science, University of Poona, 411 007 Pune, India |
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| Abstract: | Superconducting thin films of Y1Ba2Cu3 O7 −x have been deposited on (100) Y-ZrO2 substrates by pulsed excimer laser ablation from anunreacted mixture of Y2O3, BaCO3 and CuO. The films deposited at substrate temperature of 680°C and oxygen partial pressure of 200 mtorr were found to be superconducting with zero resistive transition temperature of 89 K and critical current density of over 3 × 105 A/cm2 at 77 K. These results are compared with those obtained by laser ablation from a sintered superconducting pellet. |
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| Keywords: | Superconductor thin films laser ablation |
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