Susceptibility and resistivity of Ce(Rh0.8Ru0.2)2Si2 single crystal

Susceptibility, χ(T), and resistivity, ρ(T), measurements performed on a Ce(Rh0.8Ru0.2)2Si2 single crystal are reported. Both χ(T) and ρ(T) show a peak at 12 K, characteristic of antiferromagnetic (AF) order. However, their derivatives below this peak show broad maxima at 8 K, indicating large disorder. The results are compared to those for crystals with different Ru concentrations, especially to pure CeRh2Si2 where two Néel temperatures TN1=36K and TN2=26K were observed.