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

Abstract The norma state transport properties of as-grown Nd 2− x Ce x CuO 4 crystals with x = 0; 0.13; 1.17; 0.18 are investigated in temperature range 1.7K⩽ T ⩽ 300K at the magnetic field up to B= 5T. It was found that the increase of the Ce-content leads to the change of the conduction law from semiconductor-like behaviour for undoped Nd 2 CuO 4 to metallic-like for overdoped single crystals. Anisotropic negative magnetoresistance together with non-metallic behaviour ( p ( T ) ∼In T ) at low temperatures of the in-plane resistivity demostrates 2D (or anisotropic 3D) weak localization effect for the as-grown single crystals.