Thermodynamic and Transport Properties of Single Crystal YbNi₄Cd

Single crystals of YbNi₄Cd and LuNi₄Cd, which crystallize in the cubic MgCu₄Sn-type structure, were grown using a Ni-Cd flux. We have studied the thermal, magnetic, and electrical properties of these compounds by means of specific heat, magnetization, and resistivity measurements. For YbNi₄Cd, a long-range magnetic order detected below ~ 1 K can be suppressed by the applied magnetic field of 5 kOe. In the paramagnetic state, the resistivity measurements show anomalous temperature dependencies with n > 2 (ρ = ρ_o + ATⁿ). We will discuss the observed physical properties in relation to the cubic heavy fermion compounds YbCu₄X (X = Ag, Cd, In).