The noise power spectral density in thin epitaxial YBa2Cu3O7-δ films

被引：0

作者：

Labrag, A ^{[1
]}

Taoufik, A ^{[1
]}

Senoussi, S ^{[1
]}

Ramzi, A ^{[1
]}

机构：

[1] Univ Ibn Zohr, Fac Sci, Dept Phys, Lab Mat Supraconducteurs Haute Temp Crit, Agadir, Morocco

来源：

PHYSICA STATUS SOLIDI C: MAGNETIC AND SUPERCONDUCTING MATERIALS, PROCEEDINGS | 2004年 / 1卷 / 07期

关键词：

D O I：

10.1002/pssc.20304484

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the noise power spectral density S(f 7 in YBa2Cu3O7-delta, thin films. Measurements were performed for various magnetic field, up to 14 T, and in a large range of temperatures. We found that in thin films deposed by the laser ablation method on the surface (001) of SrTiO3 substrate, the noise power spectral density S(f) exhibits a lorentzian shape behavior in the mixed state and that all the peaks of temperature dependent noise power spectral density S(T) at a determined frequency value were appeared in large game of the temperature. Our results suggested that the noise power spectral density under the applied magnetic field in the mixed state does not come from thermal fluctuation and that the flux motion remains the most probable origin of the noise. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：1904 / 1907

页数：4

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