The effect of substrate vicinal offcut on the morphology and physical properties of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// thin films

Author

Vassiloyannis, D.

Author_Institution

Sch. of Metall. & Mater., Birmingham Univ., UK

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

1638

Lastpage

1641

Abstract

In this work we present a simple and reliable new method for producing YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// thin films with an exceptionally high J/sub c/ value, one order of magnitude higher than the value usually reported for this phase and a low surface roughness/spl sim/1 nm. Using SrTiO/sub 3/ substrates polished at low angles off the [001] towards the [010] plane provides control over both the physical properties and surface roughness of the films grown, with the 1.7/spl deg/ misorientation angle leading to films with the best properties.

Keywords

barium compounds; critical current density (superconductivity); high-temperature superconductors; rough surfaces; substrates; superconducting thin films; surface topography; yttrium compounds; HTSC; SrTiO/sub 3/; SrTiO/sub 3/ substrates; YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// thin films; YBa/sub 2/Cu/sub 3/O/sub 7/; critical current density; misorientation angle; morphology; physical properties; substrate vicinal offcut; surface roughness; Critical current density; Instruments; Rough surfaces; Substrates; Superconducting films; Surface morphology; Surface roughness; Temperature; Transistors; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.784745

Filename

784745