J. Phys. IV France 12 (2002) Pr3-183
Low frequency noise in YBaCuO superconducting thin films deposited on MgOG. Leroy1, J. Gest1, P. Tabourier1, J.-C. Carru1, A.F. Dégardin2 and A.J. Kreisler2
1 Littoral Côte d'Opale, BP. 717, 62228 Calais, France
2 Laboratoire de Génie Électrique de Paris, LGEP, Supélec, Universités Paris 6 et 11, UMR 8507 du CNRS, Plateau de Moulon, 91192 Gif-sur-Yvette cedex, France
In this paper we present a comparison of DC and electrical noise characteristics of high-temperature superconducting thin films. Two YBaCuO thin films deposited on MgO substrates were studied and compared. The R-T, I-V and electrical noise properties were studied for each film. Noise measurements show that they are more sensitive than the DC ones. They can give evidence of physical phenomena such as "pre-transitional superconducting effect"
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