Published 2005 | Version v1
Miscellaneous

Characterizations of MgO substrates and epitaxial YBCO thin films

  • 1. Commonwealth Scientific and Industrial Organisation, Lindfield, NSW (Australia)

Description

Full text: YBCO films were grown on MgO substrates for fabricating step-edge junction SQUIDs and other devices. In-plane 45' grain misalignment was frequently observed in the films grown on the degraded or contaminated MgO substrates. We investigated the chemical properties of the MgO substrates of varied surface conditions that are due to different substrate preparation methods and environmental degradation by using XPS. The in-plane grain orientation of the YBCO films was studied by means of XRD phi-scan. A final cleaning step of MgO substrates using an ion beam etching (IBE) prior to the thin film deposition was found to be effective in removing the in-plane grain misalignment and promoting the growth of perfectly aligned c-axis YBCO films. Copyright (2005) Australian Institute of Physics

Part of:
16th National Congress of the Australian Institute of Physics. Congress Proceedings Handbook and Abstracts

Additional details

Publishing Information

Imprint Title
16th National Congress of the Australian Institute of Physics. Congress Proceedings Handbook and Abstracts
Imprint Pagination
268 p.
Journal Page Range
p. 171

Conference

Title
16. National Congress of the Australian Institute of Physics. Physics for the Nation
Dates
30 Jan - 4 Feb 2005
Place
Canberra, ACT (Australia)

Optional Information