Non-Fermi-liquid-like behavior in Ce(Ru1-xRhx)2Si2 (0.3≤x≤0.5)

We have studied the magnetic properties of the mixed-compound system Ce(Ru1-xRhx)2Si2 (0.3 ≤ x ≤ 0.5) by means of specific heat and magnetization measurements with single-crystalline samples. In the intermediate concentration range, 0.3 ≤ x ≤ 0.5, we observed non-Fermi-liquid-like behavior in the temperature dependence of the magnetic specific heat. We compare the temperature dependence of the susceptibilities with the results of the calculation by the crystalline electric field model. Below about 100 K the susceptibilities deviate downward from the calculation; this means that the Kondo effect exists in the intermediate concentration range. (orig.)