We report on the design and synthesis of a twodimensional metal−organic framework Fe 3 (HITP) 2 which comprises of a Kagome sublattice of Fe atoms. Density-functional theory calculations reveal that this framework has a ferromagnetic ground state with several topological nontrivial gaps opened due to the spin−orbit coupling, signifying quantum anomalous Hall features. Experimentally, we synthesize this structure by means of on-surface coordination self-assembly on an Au(111) substrate. We resolve its structure at a single-molecule resolution using scanning tunneling microscopy and confirm that the on-surface structure is nearly identical to the free-standing framework. We use scanning tunneling spectroscopy to study its electronic properties. A zero-bias resonance localized at the Fe atoms indicates that a magnetic moment is present at the Kagome lattice. Our results demonstrate the viability of realizing 2D organic quantum anomalous Hall systems.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.