Behaviour of both in-plane and out-of-plane resistivities of Nd2-xCexCuO4 single crystals

The norma state transport properties of as-grown Nd2-xCexCuO4 single crysta ls with x=0; 0.13; 0.17; 0.18 are investigated in temperature range 1.7 K l ess than or equal to T less than or equal to 300 K and at the magnetic fiel d up to B = 5 T. It was found that the increase of the Ce-content leads to the change of the conduction law from semiconductor-like behaviour for undo ped Nd2CuO4 to metallic-like for overdoped single crystals. Anisotropic neg ative magnetoresistance together with non-metallic behaviour (rho (T) simil ar to ln T) at low temperatures of the in-plane resistivity demonstrates 2D (or anisotropic 3D) weak localization effect for the as-grown single cryst als.