thin films: Electronic and magnetic phase diagram*

Controlling the electronic and magnetic properties in strongly correlated electron systems has been widely investigated through engineering the lattice by chemical pressure effects. Here, we present a systematic study on the isovalent substitution in the growth of epitaxial SrRu_1-xSn_xO₃ (0 < x < 1) thin films by pulsed laser deposition. Since the quaternary members of this system is unstable in bulk, we used the thin film approach to stabilize the phase at different concentrations of x. X-ray diffraction, transport, and magnetometry measurements were performed to build a phase diagram relating to the functional properties at certain x concentrations. As the evolution of x increase from SrRuO₃ (a metallic ferromagnetic) to SrSnO₃ (an insulating diamagnetic), we observed a metal-insulator transition. This talk will focus on the structure, electronic, and magnetic properties due to the influence of chemical doping, highlighting doping as a route to tune functional properties in 4d transition metal oxides.