Synthesis and magnetic properties of NiFe2−xSmxO4 nanopowder

作者: S.A. Hassanzadeh-Tabrizi , Shahrzad Behbahanian , Jamshid Amighian

DOI: 10.1016/J.JMMM.2016.03.015

关键词: Lattice constantScanning electron microscopeDiffractometerNuclear magnetic resonanceCrystalliteTransmission electron microscopySamariumAnalytical chemistryFourier transform infrared spectroscopyMaterials scienceCoercivity

摘要: Abstract NiFe 2− x Sm O 4 ( =0.00, 0.05, 0.10 and 0.15) nanopowders were synthesized via a sol–gel combustion route. The structural studies carried out by X-ray diffractometer, Fourier transform infrared spectroscopy, scanning electron microscopy transmission microscopy. XRD results confirmed the formation of single-phase spinel cubic structure. crystallite size decreased with an increase samarium ion concentration, while lattice parameter strain increased substitution. TEM micrographs showed that agglomerated nanoparticles particle sizes ranging from 35 to 90 nm obtained. magnetic using vibrating sample magnetometer. Magnetic measurements revealed saturation magnetization M s ) decreases increasing 3+ reduction is attributed dilution interaction. coercivity H c samples increases adding samarium.

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