Magnetization of Magnetically Inhomogeneous Sr₂FeMoO_6-<i>δ</i> Nanoparticles

Abstract

In this work, we describe the magnetization of nanosized SFMO particles with a narrow size distribution around ca. 70 nm fabricated by the citrate-gel technique. The single-phase composition and superstructure ordering degree were proved by X-ray diffraction, the superparamagnetic behavior by magnetization measurements using zero-field cooled and field-cooled protocols, as well as by electron magnetic resonance. Different contributions to the magnetic anisotropy constant and the temperature dependence of the magnetocrystalline anisotropy are discussed.

Keywords

• strontium ferromolybdate
• citrate-gel process
• nanoparticles
• magnetization