Magnetic Control of the Manganese Photoluminescence in Fe₃O₄/<scp>l</scp>-Cys ZnS:Mn Nanocomposites

We investigated the magnetic control of Mn photoluminescence (PL) in iron oxide/l-cysteine-capped zinc sulfide (Fe3O4/l-cys ZnS:Mn) nanocomposites via temperature- and field-dependent PL intensity studies. Fe3O4/l-cys ZnS:Mn was synthesized following a wet chemical deposition route then its physicochemical, morphological, properties were characterized. X-ray diffraction analysis indicates formation semiconducting composite material with coexisting phases high crystalline quality purity. Electron microscopy reveals that surfaces nanoparticles are clean smooth, sized between 15 30 nm, without any sheathed amorphous phase. Vibrating sample magnetometry UV light excitation show clear superparamagnetic behavior an optical response ZnS:Mn, which revealed bifunctional nature. Magnetoluminescent coupling at 1.0 T is seen form suppression from low temperature (10 K) to room temperature, drop ∼5% 10 K maximum 10% temperature. This observation can be explained by restriction energy transfer orbitals through ordering Jahn–Teller distortions. shows promise as biocompatible compound applied theranostic agent quantum computational element. A deeper understanding behind materials brings forth new arenas diagnostics drug delivery.