Growth and Characterization of (111)-Oriented SrRuO₃/SrTiO₃ Superlattices via Pulsed Laser Deposition

The Synthesis of superlattices along the (111)-orientation axis of SrRuO₃/SrTiO₃ superlattices introduces allows geometric frustration[MDj1] engineering of the active layers, and modifiesmodifying orbital overlap and , potentially enabling access to Chern insulating states and anomalous ground states in 4d transition metal oxides. The For this talk, ruthenate superlattices are were grown via pulsed laser deposition, targeting symmetry-driven topological phases predicted in buckled honeycomb lattices ruthenates. The films are characterized via X-rRay dDiffraction, atomic force microscopy, and transport measurements., and synchrotron-based ARPES. ARPES allows us to probe the buried interfaces and resolve momentum-resolved band dispersions. Our measurements aim to benchmark DFT theoretical predictions and identify perturbative routes —strain, doping, layer thickness—to stabilize topological order. This work advances geometrical engineering of oxide heterostructures and provides empirical insight into the emergence of symmetry-protected phases relevant to quantum information platforms. The results will inform design principles for high-temperature topological states and lossless edge conduction in complex oxide systems.