Properties of YBCO thin films on vicinally polished MgO substrates
- 1 January 1992
- journal article
- Published by IOP Publishing in Superconductor Science and Technology
- Vol. 5 (1S) , S427-S431
- https://doi.org/10.1088/0953-2048/5/1s/099
Abstract
YBa2Cu3O7-x thin films were grown on vicinally polished MgO(001) substrates using a reactive RF-magnetron sputtering technique. The authors studied effects of vicinal cut on growth orientations and transport properties. The c-axis directions of all the films were strongly influenced by the substrate surface normal, with weak alignment to the substrate (001)MgO direction. No significant dependence of Tc's on vicinal angles was observed. However, Jc's were strongly degraded with vicinal angle. Jc's were also anisotropic to the vicinal direction. A vicinal cut affected the growth of YBCO films to increase the density of weak links.Keywords
This publication has 4 references indexed in Scilit:
- Growth of YBa2Cu3O7−δ on vicinally polished MgO substratesApplied Physics Letters, 1990
- Growth of untwinned Bi2Sr2Ca2Cu3Ox thin films by atomically layered epitaxyApplied Physics Letters, 1990
- Superconducting transport properties of grain boundaries in bicrystalsPhysical Review B, 1990
- Crystal orientations and defect structures of GaAs layers grown on misoriented Si substrates by molecular-beam epitaxyJournal of Vacuum Science & Technology B, 1987