Anisotropic Magnetic Properties of URhIn₅ Compound

We report on synthesis and anisotropic physical properties of URhIn5. High quality single crystals were grown from In self-flux. The compound undergoes a second-order phase transition into an antiferromagnetic state at T-N = 98 K. The transition is magnetic field independent up to 9 T. An increase of the resistivity rho with j along the [100], [110] and [001] tetragonal axis indicates a spin-density-wave induced order with the gap opening first along the [001] direction. The magnetic susceptibility chi = M/H exhibits a strong anisotropy. Above T = 200 K, chi(T) follows the Curie Weiss law with the effective moment of mu(eff) = 3.71 mu(B)/U and the Weiss temperatures of theta([100])(P) = -900 K and theta([001])(P) = -500 K for H parallel to [100] and H parallel to [001], respectively. The characteristic Kondo-like temperature for URhIn5 yields T-K = 125 K.