Effect of Cr{sup 3+} Ions Substitution on Structural and Magnetic Properties of Co Ferrite Nanoparticles

Journal Article · Thu Feb 15 04:00:00 EST 2018 · Journal of Superconductivity and Novel Magnetism

DOI:https://doi.org/10.1007/S10948-017-4205-3· OSTI ID:22774127

Bainade, S. R. ^[1]; Sable, M. C. ^[2]

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1. Jijamata Mahavidyalaya, Department of Physics (India)
2. Department of Physics, Indraraj Arts, Commerce and Science College (India)

A series of polycrystalline nanoferrite having the chemical formula CoCr{sub x}Fe{sub 2−x}O{sub 4} (x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0) were synthesized by sol-gel autocombustion method. X-ray diffraction (XRD) analysis was used to investigate the structural parameters and also to check the phase purity of all prepared samples. The analysis of XRD patterns revealed the formation of single-phase cubic spinel structure for all samples. The average particle size of the synthesized ferrites was identified by X-ray diffraction and scanning electron microscopy technique. The magnetic properties of Co-Cr nanoferrites were measured using a hysteresis loop tracer at room temperature and magnetic field of 5 KOe. Saturation magnetization (M{sub s}) and coercivity (H{sub c}) decrease with the increasing Cr{sup 3+} ions concentration in the Co-Cr ferrite, indicating that lesser magnetic Cr{sup 3+} ions substitute Fe{sup 3+} ions in the octahedral sublattice of the ferrite. Such materials are useful to reduce the energy loss in AC electrical appliances.

• OSTI ID: 22774127
• Journal Information: Journal of Superconductivity and Novel Magnetism, Journal Name: Journal of Superconductivity and Novel Magnetism Journal Issue: 2 Vol. 31; ISSN 1557-1939
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHROMIUM IONS
COBALT COMPOUNDS
COERCIVE FORCE
CONCENTRATION RATIO
ENERGY LOSSES
FERRITES
HYSTERESIS
IMPURITIES
IRON IONS
MAGNETIC FIELDS
MAGNETIC PROPERTIES
MAGNETIZATION
NANOPARTICLES
PARTICLE SIZE
POLYCRYSTALS
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SPINELS
TEMPERATURE RANGE 0273-0400 K
X-RAY DIFFRACTION