Rational selection of superparamagnetic iron oxide/silica nanoparticles to create nanocomposite inductors

Abstract

The detailed characterization of core/shell iron-oxide/silica nanoparticles reveals how these superparamagnetic systems are actually composed of a Fe₃O₄ inner core, γ-Fe₂O₃, outer core, iron orthosilicate interphase layer, and exterior silica shell. The performance of a superparamagnetic inductor device is then reported for the nanocomposite formed from the binder-free consolidation of these core/shell nanoparticles.