학술논문
Percolation-Induced Ferrimagnetism from Vacancy Order in [Gua]Mn1–xFe2x/3(HCOO)3Hybrid Perovskites
Document Type
Article
Author
Source
Journal of the American Chemical Society; 20240101, Issue: Preprints
Subject
Language
ISSN
00027863; 15205126
Abstract
We report the magnetic behavior of the hybrid perovskites [Gua]Mn1–xFe2x/3□x/3(HCOO)3(0 ≤ x≤ 0.88), showing that vacancy ordering drives bulk ferrimagnetism for x> 0.6. The behavior is rationalized in terms of a simple microscopic model of percolation-induced ferrimagnetism. Monte Carlo simulations driven by this model reproduce the experimental dependence of magnetic susceptibility on xand show that, at intermediate compositions, domains of short-range vacancy order lead to the emergence of local magnetization. Our results open up a new avenue for the design of multiferroic hybrid perovskites.