*

Sr₂IrO₄ is a spin-orbit-coupled insulator with an antiferromagnetic transition T_N = 240 K. Due to delicate balance of energies that drive the unique ground state, chemical doping has strong effect on physical properties of iridates. We will discuss results of our recent study of Pr doped Sr₂IrO₄ and will compare those with our earlier work on Tb doping of the same compound. Substituting Pr³⁺ ion for the Sr²⁺ ion doesn’t alter the lattice parameters significantly, however even with slight Pr doping it induces several orders of magnitude reduction in resistivity as well as suppression of antiferromagnetic transition to lower temperatures. In addition to suppression of magnetic ordering temperature, field cooled magnetization reveals magnetization reversal below 30K which cannot be observed in zero-field cool magnetization. This behavior is quite different from that of Tb doped Sr₂IrO₄ and the comparison between the two systems will be discussed.