Study of in situ laser deposited YBCO thin films
Brorsson, G., Alarco, J. A., Ivanov, Z. G., Olin, H., Nilsson, P. A, & Claeson, T. (1990) Study of in situ laser deposited YBCO thin films. Journal of The Less-Common Metals, 164-165(PART 1), pp. 383-390.
YBCO thin films were fabricated by laser deposition, in situ on MgO substrates, using both O2 and N2O as process gas. Films with Tc above 90 K and jc of 106 A/cm2 at 77 K were grown in oxygen at a substrate temperature of 765 °C. Using N2O, the optimum substrate temperature was 745 °C, giving a Tc of 87 K. At lower temperatures, the films made in N2O had higher Tc (79 K) than the films made in oxygen (66 K). SEM and STM investigations of the film surfaces showed the films to consist of a comparatively smooth background surface and a distribution of larger particles. Both the particle size and the distribution density depended on the substrate temperature.
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|Item Type:||Journal Article|
|Additional Information:||Cited By (since 1996):1
Export Date: 5 November 2013
Language of Original Document: English
Correspondence Address: Brorsson, G.; Department of Physics, Chalmers University of Technology, S-41296 Göteborg, Sweden
|Keywords:||Barium Compounds - Superconductivity, Copper Compounds - Superconductivity, Magnesia - Substrates, Superconducting Films - Laser Applications, Yttrium Compounds - Superconductivity, Ceramic Superconductors, In Situ Laser Deposited Films, Mixed Oxide Superconductors, Oxide Superconductors, Scanning Electron Microscopy, Yttrium Barium Copper Oxides, High Temperature Superconductors|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||06 Nov 2013 03:23|
|Last Modified:||06 Nov 2013 03:23|
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