Pressure-dependent studies of CeSbNi_x (0≤x≤0.35)

We studied the effect of Ni incorporation on the magnetic properties of CeSbNi_x (0≤x≤0.35) using resistivity, susceptibility, and magnetization measurements under high pressure and magnetic field. With increasing pressure antiferromagnetic transition temperature (T_N) of CeSb increases continuously leading to a high pressure phase. Similarly, T_N of CeSbNi_x increases with pressure for x≤0.15 while increasing pressure weakens a Cr-like anomaly found in the resistivity of CeSbNi_0.08. Interestingly, resistivity of CeSbNi_0.08 under higher pressure becomes very similar to that of CeSb at ambient pressure. Magnetic hysteresis, metamagnetic transition, and saturation behavior, which are absent in the ambient-pressure magnetization of CeSbNi_0.05 and CeSbNi_0.08, begin to appear with pressure too. On the other hand, pressure effects in both resistivity and magnetization of CeSbNi_0.15 and CeSbNi_0.35 are different from those of CeSbNi_0.05 and CeSbNi_0.08. We discuss these findings with regard to possible Ni-induced changes in the nature of the magnetic interactions of CeSb.