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conference paper
Effects of lattice disorder on the superconducting properties of YBa2Cu3O6.9 films
1994
Physica C: Superconductivity
We report on striking sensitivity of the superconducting properties of ion-beam sputtered YBa2Cu3O6.9 films to the lattice disorder (induced by varying growth temperatures). Tc decreases with increasing disorder, while the width of the resistive transition and the normal state resistivity increase. We give a quantitative significance to this trend by expressing the degree of the disorder in terms of the lattice coherence length rc that is extracted from the width of X-ray diffraction rocking curves. We find that Tc saturates to the maximum of approximately equals 92 K for rcgt;10 nm.
Type
conference paper
Web of Science ID
WOS:A1994QC69400292
Authors
Publication date
1994
Published in
Physica C: Superconductivity
Volume
235-240
Issue
part 2
Start page
1305
End page
1306
Peer reviewed
REVIEWED
EPFL units
Event name | Event place | Event date |
Grenoble, Fr | Jul 5-9 1994 | |
Available on Infoscience
March 9, 2007
Use this identifier to reference this record