Preparation and Magnetic Characteristics of Co_{1-δ}Zn_{δ}Fe₂O₄ Ferrite Nanopowders

• Authors: M. Kubisztal , I. Herok , M. Karolus , K. Prusik , G. Haneczok
• Languages of publication: EN

Abstracts

EN

In the present paper the Co_{1-δ}Zn_{δ}Fe₂O₄ (0 ≤ δ ≤ 1) ferrite nanopowders with a spinel type structure were synthesized using a chemical co-precipitation technique with constant flow rate ν _{FR}=120 cm³/min at three different reaction temperatures i.e. T_r =50°C, 70°C and 90°C. Magnetic and structural characteristics of the obtained materials were investigated by means of X-ray diffraction method, transmission electron microscopy and vibrating sample magnetometer. In the course of studies hysteresis loops M(μ₀H) and the relations of magnetization M_{7T} (determined at μ_0H=7 T), squareness ratio S and the Néel temperature T_{N} versus Zn content were determined and discussed in detail. It was shown that for δ<0.6 the increase in reaction temperature T_r results in a significant increase of the measured magnetic characteristics. In particular, in the case of Co_{0.8}Zn_{0.2}Fe₂O₄ ferrite nanopowder magnetization M_{7T} reaches maximal value of about 80 emu/g.

Keywords

EN

75.47.Lx; 75.50.Gg; 75.50.Tt; 75.75.-c; 75.75.Cd

Discipline

• 75.75.-c: Magnetic properties of nanostructures
• 75.50.Gg: Ferrimagnetics
• 75.50.Tt: Fine-particle systems; nanocrystalline materials
• 75.75.Cd: Fabrication of magnetic nanostructures(see also 81.16.-c Methods of micro- and nanofabrication and processing, and 81.07.-b Nanoscale materials and structures: fabrication and characterization)
• 75.47.Lx: Magnetic oxides

• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 5
• Pages: 1236-1239

Dates

published

2017-05

Contributors

author

M. Kubisztal

• Institute of Materials Science, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

author

I. Herok

• Institute of Materials Science, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

author

M. Karolus

• Institute of Materials Science, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

author

K. Prusik

• Institute of Materials Science, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

author

G. Haneczok

• Institute of Materials Science, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

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Identifiers

DOI

10.12693/APhysPolA.131.1236