Electronic and magnetic phase evolution in Sr$_3$(Ir$_{\mathrm{1-x}}$Ru$_{\mathrm{x}})_2$O$_7$

A great deal of recent focus has been given to understanding how the interplay of strong spin orbit coupling effects and onsite coulomb repulsion change the conventional energy hierarchy in correlated 5d electron iridium oxides. Contrary to conventional band theory, perovskite iridate compounds Sr2IrO4 and Sr3Ir2O7 have long been known to be insulators; however many of their fundamental electronic properties and the interactions responsible for generating their antiferromagnetic insulating ground states remain under investigation. Here, we report results from our transport and magnetization study of electronic and magnetic phase of Sr3Ir1-xRuxO7. The evolution of the phase behavior as Sr3Ir2O7 is tuned from an AF insulator to a paramagnetic metal and the potential for a first order metal to insulator transition will be discussed.