International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 81 - Number 7 |
Year of Publication: 2013 |
Authors: Abdelhalim Hafid, Ahmed Taoufik, Abella Bouaaddi, Hassan Elouadi, Mustapha Bghour, Habiba El Hamidi, Brahim Lmouden, Ahmed Tirbiyine, Abdelhakim Nafidi |
10.5120/14022-1630 |
Abdelhalim Hafid, Ahmed Taoufik, Abella Bouaaddi, Hassan Elouadi, Mustapha Bghour, Habiba El Hamidi, Brahim Lmouden, Ahmed Tirbiyine, Abdelhakim Nafidi . Noise Spectral Density and Vortex Velocity in YBCO Thin Film at High Critical Temperature. International Journal of Computer Applications. 81, 7 ( November 2013), 9-14. DOI=10.5120/14022-1630
We have studied the voltage noise Vnoise and the voltage noise spectral density Sv of YBaCuO superconductor in the regime of high magnetic field. Our measurements were taken for different temperatures covering the vortex-glass and vortex-liquid transition which represents the Tg temperature glass, The voltage noise spectral density Sv(f, T, H) as a function of frequency exhibits 1/f behaviour according to a lorentzian shape A((1+ ?f/f0)B)C, where the constants A, f0, B and C are all determined, and temperature has a strong influence. in addition, we study the variation in the velocity of the vortex as a function of temperature.