Low temperature magnetism of Cd-doped Ce2RhIn8 heavy fermion antiferromagnet

Abstract We report the low temperature magnetic properties of Cd-doped single crystals of Ce 2 RhIn 8 grown from In-flux. Measurements of temperature-dependent magnetic susceptibility, heat capacity, electrical resistivity and X-ray magnetic scattering revealed that Cd-doping enhances the antiferromagnetic ordering temperature from T N = 2.8 to 4.8 K for crystals with nominal Cd-concentration of ~ 20 % . Similarly to the pure compound, Cd-doped Ce 2 RhIn 8 presents just below T N a commensurate antiferromagnetic structure with a propagation vector η ⇒ = ( 1 2 , 1 2 , 0 ) . Comparisons between our results and the general effects of Cd-doping on the single layer related family CeMIn 5 ( M = Co , Rh and Ir) will also be given.