eprintid: 13918
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/39/18
datestamp: 2023-11-10 03:28:29
lastmod: 2023-11-10 03:28:29
status_changed: 2023-11-10 01:52:18
type: article
metadata_visibility: show
creators_name: Zahari, M.H.B.
creators_name: Guan, B.H.
creators_name: Chuan, L.K.
creators_name: Zainudin, A.A.B.
title: Structural, morphological and magnetic characterization of Sm-substituted Ni-Zn ferrite
ispublished: pub
keywords: Agglomeration; Binary alloys; Combustion; Crystallite size; Ferrite; Ferrites; Magnetic properties; Metal ions; Rare earths; Samarium; Scanning electron microscopy; Sol-gel process; Sol-gels; Synthesis (chemical); X ray diffraction, Agglomerated particles; Electrical insulation properties; Field emission scanning electron microscopes; Magnetic characterization; Sol-gel auto-combustion; Superexchange interaction; Uniform microstructure; Vibrating sample magnetometer, Saturation magnetization
note: cited By 1
abstract: Background: Rare earth materials are known for its salient electrical insulation properties with high values of electrical resistivity. It is expected that the substitution of rare earth ions into spi-nel ferrites could significantly alter its magnetic properties. In this work, the effect of the addition of Samarium ions on the structural, morphological and magnetic properties of Ni0.5Zn0.5SmxFe2-xO4 (x=0.00, 0.02, 0.04, 0.06, 0.08, 0.10) synthesized using sol-gel auto combustion technique was inves-tigated. Methods: A series of Samarium-substituted Ni-Zn ferrite nanoparticles (Ni0.5Zn0.5SmxFe2-xO4 where x=0.00, 0.02, 0.04, 0.06, 0.08, 0.10) were synthesized by sol-gel auto-combustion technique. Structur-al, morphological and magnetic properties of the samples were examined through X-Ray Diffraction (XRD), Field-Emission Scanning Electron Microscope (FESEM) and Vibrating Sample Magnetometer (VSM) measurements. Results: XRD patterns revealed single-phased samples with spinel cubic structure up to x= 0.04. The average crystallite size of the samples varied in the range of 41.8 � 85.6 nm. The prepared samples exhibited agglomerated particles with larger grain size observed in Sm-substituted Ni-Zn ferrite as compared to the unsubstituted sample. The prepared samples exhibited typical soft magnetic behavior as evidenced by the small coercivity field. The magnetic saturation, Ms values decreased as the Sm3+ concentration increases. Conclusion: The substituted Ni-Zn ferrites form agglomerated particles inching towards more uniform microstructure with each increase in Sm3+ substitution. The saturation magnetization of substituted samples decreases with the increase of samarium ion concentration. The decrease in saturation magnetization can be explained based on weak super exchange interaction between A and B sites. The difference in magnetic properties between the samples despite the slight difference in Sm3+ concentra-tions suggests that the properties of the NiZnFe2O4 can be �tuned�, depending on the present need, through the substitution of Fe3+ with rare earth ions. © 2020 Bentham Science Publishers.
date: 2020
publisher: Bentham Science Publishers
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083467435&doi=10.2174%2f2210681208666181018093813&partnerID=40&md5=38cbb261a0a26b96c6286dd97cea8f1f
id_number: 10.2174/2210681208666181018093813
full_text_status: none
publication: Nanoscience and Nanotechnology - Asia
volume: 10
number: 2
pagerange: 152-156
refereed: TRUE
issn: 22106812
citation:   Zahari, M.H.B. and Guan, B.H. and Chuan, L.K. and Zainudin, A.A.B.  (2020) Structural, morphological and magnetic characterization of Sm-substituted Ni-Zn ferrite.  Nanoscience and Nanotechnology - Asia, 10 (2).  pp. 152-156.  ISSN 22106812