Abstract

Results from studying the temperature dependence of resistivity of single-crystal films of Nd1.86Ce0.14CuO4 (underdoped region) in magnetic fields of up to 90 kOe in the temperature range of 1.8–40 K are presented. The temperature dependence of the upper critical field obtained via the resistive method is analyzed using the impurity superconductor model with two types of carriers.

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