In topological physics, band topology often originates from spin-orbit interaction, which gives rise to complex hopping parameters. While this approach has enjoyed great success in non-interacting or weakly interacting electronic materials, the consequences of complex hopping was understood in a drastically different context in strongly correlated systems due to fundamentally different views of electronic structure.
Click here for original story, Researchers find novel topology-correlation interplay in toy model system built from iridate superlattice
Source: Phys.org