Observation of intrinsic fluorescence in cobalt ferrite magnetic nanoparticles by Mn²⁺substitution and tuning the spin dynamics by cation distribution

Abstract

In this work, we report the synthesis and detailed characterization of single-domain, optically active, manganese-substituted cobalt ferrite (CoFe 2 O 4 ) magnetic nanoparticles without any surface functionalization as prospective fluorescent probes for bio-imaging.