Researches of the fluctuation contribution to IV-curves
for single crystal YBa2Cu3O7-x near Tc
A.I. Golovashkin, I.S. Levchenko, Ch. Shukurov
P.N. Lebedev Physics Institute of RAS, Moscow, Russia
A.I.Baikov
General Physics Institute of RAS, Moscow, Russia
The measurements of IV-curves for single crystal YBa2Cu3O7-x
near temperature of phase trasition (T > Tc) to superconductive state have been carried
out. It was revealed nonlinear in a wide IV-curves temperature interval. The
nonlinear IV-curves of HTSC near Tc were explained by the order parameter
fluctuations. It was developed the method of determination of the fluctuation
contribution