MNPs display these intriguing and distinct properties that are not seen in their comparable bulk counterparts, owing to constrained size effects such as an increased surface-volume ratio and surface effects caused by symmetry breakdown of the crystalline structure at the particle's surface. MNPs are used to create functional materials due to these unique properties. The relevance of magnetic characteristics of MNPs is shown by phenomena such as exchange bias, spin frustration, increased coercivity, superparamagnetic activity, and depression in magnetic-ordering temperature (Tc). Alloy-based MNPs surpass other magnetic nanoparticle systems in potential magnetic uses due to their convenient refining of particle sizes and chemical structure and makeup. MNPs are also critical in nano-catalyzed chemical processes and solid-state extraction procedures. MNPs exhibit quantum properties such as magnetic tunneling at cooler temperatures. MNPs display distinct characteristics as temperatures change from high to low.Ĭharacteristics such as superparamagnetic properties and exchange bias at room temperature make them a great choice for biomedicine systems and magnetic storage. Magnetic nanoparticles (MNPs) are believed to have numerous uses in science and technology, notably in the realm of medicine. The magnetization of the core-shell nanoparticles was also evaluated as a function of the interfacial exchange energy between the magnetic moments of iron and cobalt (J Fe-Co). In said nanoparticles, iron constitutes the core while cobalt makes up the shell. Study: Temperature dependent magnetization in Nanoparticles. Image Credit: / Ezume Images By Shaheer Rehan Reviewed by Megan Craig, M.Sc.Ī study published in Physica B: Physics of Condensed Matter presented atomic-level simulations to look into how the size of nanoparticles (NPs) and core-shell distribution influence the magnetization of spherical nanoparticles.