Magnetic interactions in cubic iron oxide magnetic nanoparticle bound to zeolite

• Average hyperfine field reflects the particle size.
• Fe3O4 exists in two microenvironments.
• Magnetic interaction exists in Fe3O4 at the pore and surface of zeolite.
• Low temperature studies support the interaction phenomena.

Magnetic interaction of the magnetite (Fe3O4) nanoparticles grown on zeolite has been studied. XRD patterns show that in the presence of 25–75 mg of zeolite the average particle size of Fe3O4 decreases to ≈6 nm, but with the increase of zeolite content (75 mg

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