Carrier-mediated antiferromagnetic interlayer exchange coupling in Ga co-doped (Zn, Ni)O-based multilayers

Luo, Ming; Shen, Yuhao

doi:10.1016/j.ijleo.2016.08.108

Cited by 2 publications

(1 citation statement)

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“…The inter-phase interactions are often influenced by the grain size and shape, and interface condition. In addition, the inter-phase exchange interactions in composite ferrite always coexist with magnetic dipolar interaction [19-22]. Enhancement in magnetic properties might be due to the coupling of hard ferrite (CoFe 2 O 4 ) with soft ferrite (NiFe 2 O 4 ) phase.…”

Section: Resultsmentioning

confidence: 99%

Study of CoFe₂O₄/NiFe₂O₄ nanocomposite ferrite film

Rahman

Jayaganthan

2017

Surface Engineering

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Electroless nanostructured films of hard ferrite (CoFe 2 O 4 ), soft ferrite (NiFe 2 O 4 ) and composite ferrite CoFe 2 O 4 /NiFe 2 O 4 (hard/soft ferrite) were deposited on soda lime glass. The structures and magnetic properties of samples were characterised by X-ray powder diffraction, field emission scanning electron microscopy and superconducting quantum interference device (SQUID, MPMSXL). The results of magnetic properties revealed that the saturation magnetisation (M s ), remanent magnetisation (M r ), coercivity (H c ) and M r /M s ratio of composite ferrite film (CoFe 2 O 4 /NiFe 2 O 4 ) were higher than those of a single hard ferrite film (CoFe 2 O 4 ) and soft ferrite film (NiFe 2 O 4 ). The enhancement in magnetic properties of composite ferrite film (CoFe 2 O 4 /NiFe 2 O 4 ) may be attributed to the exchange coupling interaction between hard magnetic and soft magnetic materials. The mean crystallite size of soft ferrite (NiFe 2 O 4 ), hard ferrite (CoFe 2 O 4 ) and composite ferrite films (CoFe 2 O 4 /NiFe 2 O 4 ) was found to be in the range of 20-40 nm. The exchange-spring interaction mechanism was discussed.

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Section: Resultsmentioning

confidence: 99%