3 papers
cond-mat.supr-con2003
Current noise in high Tc granular superconductors under non-stationary conditions of current and magnetic field
P. Mazzetti, P. Tura, A. Masoero +1
We present a set of experimental results concerning the power spectrum of current noise, detected on a granular high Tc superconductor submitted either to a slowly varying magnetic…
cond-mat.supr-con2002
Electrical anisotropy in high-Tc granular superconductors in a magnetic field
D. Daghero, P. Mazzetti, A. Stepanescu +2
We propose an analytical model devoted to explain the anisotropy of the electrical resistance observed below the critical temperature in granular high-Tc superconductors submitted…
cond-mat.supr-con2001
Barkhausen-like conductance noise in polycrystalline high Tc superconductors immersed in a slowly varying magnetic field
A. Masoero, P. Mazzetti, I. Puica +2
Analysis of the resistive transition of a polycristalline YBCO specimen produced by an a.c. magnetic field, reveals the presence of a large conductance noise signal which is repeti…