A free-standing magneto-fluorescent La1-xSrxMnO3@ZnO nanoparticle: Synthesis, properties and sharp Curie transition

A free-standing, magneto-fluorescent La1-xSrxMnO3@ZnO multifunctional core-shell nanoparticle system with a sharp, tight phase transition from ferromagnetic to superparamagnetic states, was synthesized by a modified nanoemulsion process with PEO-PPO-PEO as the surfactant. The nanoparticles show high crystallinity, bi-phase dispersible, excellent optical performance both in organic and aqueous solvent, and superparamagnetic behavior at room temperature. The multifunctional La1-xSrxMnO3@ZnO core-shell nanoparticles have led to enhanced performance and multi-functionalities, offering various possible applications of the nanoparticles.302