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Anisotropy Induced Tunable Magnetic Properties of Chemically Synthesized Copper Ferrite (CuxFe1-xO4) Nanoparticles with Different Composition

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Title Anisotropy Induced Tunable Magnetic Properties of Chemically Synthesized Copper Ferrite (CuxFe1-xO4) Nanoparticles with Different Composition
 
Creator Laha, Pinaki
Gayen, Rabindra Nath
 
Subject Soft magnetic materials
Ferrites
Nanoparticles
Magnetic properties
 
Description 1001-1007
Here we report the structural and magnetic properties of cluster of ultrafine copper ferrite (CuxFe1-xO4) nanoparticles with
different Cu:Fe composition synthesized by aqueous chemical reduction technique. The morphological, microstructural and
compositional studies confirm the formation of CuxFe1-xO4 nanoparticles with varied Cu and Fe percentages which are
polycrystalline in nature with fcc structure and average size of ~20 nm. Thermal stability and chemically purity of ferrite
nanoparticles are ensured by analyzing the TGA/DTA curve in the temperature range 30-1000 oC. Magnetization vs magnetic
field (M-H) hysteresis loops measured at two different temperatures (80K and 300K) reveal the typical ferromagnetic behavior
of CuxFe1-xO4 nanoparticles with a systematic change in the saturation magnetization (MS), coercive field (Hc), remanent
magnetization (Mr), Squareness (Mr/MS), hardness (α) and effective anisotropy energy constant (Keff) with the variation of Cu
and Fe percentages. Tunable magnetic properties of ferrite nanoparticles with the variation of magnetic Fe and non-magnetic Cu
are attributed to the modulation of effective anisotropy originated from the surface spin randomization.
 
Date 2023-12-29T04:40:55Z
2023-12-29T04:40:55Z
2023-12
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/63119
https://doi.org/10.56042/ijpap.v61i12.3973
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.61(12) (December 2023]