Review of structure-dependent transport properties in SrIrO₃

As a prominent member of the 5d transition metal oxide family, SrIrO₃ has emerged as a critical platform for investigating correlated topological states due to the complex interaction between strong spin–orbit coupling, moderate electron correlations, and structural flexibility. This review summarizes recent advances in the study of transport properties of SrIrO₃. Both bulk and thin-film forms of this material exhibit a range of transport phenomena, including metallic conductivity modulated by correlation effects, large anomalous Hall effects originating from non-trivial band topology, and metal–insulator transitions induced by external strain, electric fields, or reduced dimensionality. In heterostructures and superlattices, in particular, interfacial charge transfer, orbital reconstruction, and proximity effects can give rise to emergent magnetism and topological transport, such as highly efficient spin–orbit torques. These observed behaviors suggest the potential realization of a Weyl semimetal or topological crystalline insulator phase in SrIrO₃. Recent progress in SrIrO₃ underscores the importance of further exploring novel quantum phases within its phase diagram via multi-field control, clarifying the underlying microscopic mechanisms using advanced characterization techniques, and developing low-power electronics and spintronic devices leveraging its intertwined topological and correlated properties.