Probing the local electronic structure in metal halide perovskites through cobalt substitution
Small Methods Wiley 7:6 (2023) 2300095
Abstract:
Owing to the unique chemical and electronic properties arising from 3d‐electrons, substitution with transition metal ions is one of the key routes for engineering new functionalities into materials. While this approach has been used extensively in complex metal oxide perovskites, metal halide perovskites have largely resisted facile isovalent substitution. In this work, it is demonstrated that the substitution of Co2+ into the lattice of methylammonium lead triiodide imparts magnetic behavior to the material while maintaining photovoltaic performance at low concentrations. In addition to comprehensively characterizing its magnetic properties, the Co2+ ions themselves are utilized as probes to sense the local electronic environment of Pb in the perovskite, thereby revealing the nature of their incorporation into the material. A comprehensive understanding of the effect of transition metal incorporation is provided, thereby opening the substitution gateway for developing novel functional perovskite materials and devices for future technologies.Spatially reconfigurable topological textures in freestanding antiferromagnetic nanomembranes
(2023)
Controlling in‐plane magnetic anisotropy of Co films on MgO substrates using glancing angle deposition
physica status solidi (a) Wiley (2023)
Covalency, correlations, and inter-layer interactions governing the magnetic and electronic structure of Mn$_3$Si$_2$Te$_6$
(2023)
Observation of the skyrmion sideface state in a chiral magnet
Physical Review B: Condensed Matter and Materials Physics American Physical Society 107 (2023) L060405