Abstract
The in-plane resistivity, Hall effect (T = 77 K ) and SC-transition for some Nd 1.85- Ce 0.15 CuO 4+δ single crystal films are investigated at different nonstoichiometric disorder (δ). It is shown that with increasing of δ the Hall-coefficient for the most of the samples differs no more than twice but the normal state resistivity increases by a factor of five. SC-transition temperature decreases with essential broadening of the transition region. The observed evolution from homogeneous metallic (and superconducting) Nd 1.85 Ce 0.15 CuO 4+δ system to inhomogeneous dielectric one is described as Anderson-type disorder-induced transition in a two-dimensional electron system.
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