2018/09/21 by Sayantan Sil, Homnath Luitel, Sil, Sayantan +10
Engineering · Materials Science · #Crystal Structures and Properties #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Perovskite Materials and Applications #Solid-state spectroscopy and crystallography
paper · pdf · doi:10.48550/arxiv.1809.07957
openalex publication_date 2018/09/21 · openalex created_date 2022/08/03 · openalex updated_date 2026/07/28
The defect tolerance nature of organic-inorganic hybrid perovskite is\nreflected from its stupendous growth in photovoltaic performances. The presence\nof lattice defect can manipulate or even gives rise to some exceptional\nproperties which otherwise would have remained unseen. One of such properties\nreported in this article is the experimental observation of defect mediated\nroom temperature ferromagnetism in methylammonium lead halide perovskite for\nthe very first time, ably supported by ab-initio calculations. Theoretical\nanalysis predicts the ferromagnetism principally arises from the iodide\nvacancies in the orthorhombic and cubic crystal phases but not in the\ntetragonal phase. The low temperature (100 K) ferromagnetic hysteresis loop was\nstable even at a high temperature of 380 K substantiating the fact that the\norigin of magnetism embedded in its defective nature.\n