Abstract
The noise characteristics of YBa2Cu3O7-x films prepared by the laser ablation technique on SrTiO3 substrates were studied. The epitaxial YBCO films possess a perfect structure and are characterized by a narrow superconducting transition, strong pinning, and a very small flicker noise. In the normal state, the 1/f noise increases with the dislocation density. The minimum noise level with a Hooge parameter of (2-3) × 10-6 was observed at a disc location density of 8-12 μm-2.
Original language | English |
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Pages (from-to) | 1078-1080 |
Number of pages | 3 |
Journal | Technical Physics Letters |
Volume | 26 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 2000 |
Bibliographical note
Funding Information:Acknowledgments. The work was supported by the Russian Federal Program “Superconductivity” (project no. 98031) and by the FOM Program (Netherlands).