On the nature of the anisotropy of the resistivity of Nd2-xCexCuO4+δ with different cerium and oxygen concentrations

The results of a study of the temperature dependences of the resistivity and its anisotropy coefficient in the normal phase of single-crystal Nd2-xCexCuO4+delta films with different degrees of cerium doping x and oxygen content delta are presented. Two types of films of identical composition are considered, grown with the orientation of the c axis of the crystal perpendicular to and parallel to the plane of the substrate. The parameters found from an analysis of the conductivity and Hall coefficient are presented for the 18 samples studied. (C) 2004 American Institute of Physics.