title: Atomic engineering of mixed ferrite and core-shell nanoparticles.
abstract: Nanoparticulate ferrites such as manganese zinc ferrite and nickel zinc ferrite hold great promise for advanced applications in power electronics. The use of these materials in current applications requires fine control over the nanoparticle size as well as size distribution to maximize their packing density. While there are several techniques for the synthesis of ferrite nanoparticles, reverse micelle techniques provide the greatest flexibility and control over size, crystallinity, and magnetic properties. Recipes for the synthesis of manganese zinc ferrite, nickel zinc ferrite, and an enhanced ferrite are presented along with analysis of the crystalline and magnetic properties. Comparisons are made on the quality of nanoparticles produced using different surfactant systems. The importance of various reaction conditions is explored with a discussion on the corresponding effects on the magnetic properties, particle morphology, stoichiometry, crystallinity, and phase purity.
authors.affiliation: The George Washington University, Washington, DC 20052, USA.
authors.forename: Shannon A
authors.initials: SA
authors.lastname: Morrison
authors.forename: Christopher L
authors.initials: CL
authors.lastname: Cahill
authors.forename: Everett E
authors.initials: EE
authors.lastname: Carpenter
authors.forename: Scott
authors.initials: S
authors.lastname: Calvin
authors.forename: Vincent G
authors.initials: VG
authors.lastname: Harris
mesh_terms: D003460:Crystallization / Q000379:methods*; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods*; D005290:Ferric Compounds / Q000032:analysis / Q000737:chemistry*; D008280:Magnetics; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D005290:Ferric Compounds; C001215:ferrite