Synthesis, structural and magnetic behavior studies of Zn–Al substituted cobalt ferrite nanoparticles

Zare, Samad; Ati, Ali A.; Dabagh, Shadab; Rosnan, Rizuan Mohd; Othaman, Zulkafli

doi:10.1016/j.molstruc.2015.02.006

Cited by 50 publications

(17 citation statements)

References 53 publications

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“…The observed drop in the magnetization values is attributed to the following facts (i) decrease in the magnetocrystalline anisotropy, (ii) non-stoichiometry compositional change, (iii) size decreasing effect, due to Zn 2 þ doping, and (iv) increase in the surface spin canting effect [37]. A further gradual increase in the saturation magnetization and remnants values beyond x ¼0.3 shall be due to the facts explained by Tahar et al [36] and Zare et al [38]. On the basis of (i) transition from Neel's like collinear ferrimagnetic structure to a Yafet-Kittel like canting behavior and (ii) departure of the structure from thermodynamical stable cation distribution over the spinel sub lattice.…”

Section: Magnetization Analysismentioning

confidence: 75%

Microwave combustion synthesis of zinc substituted nanocrystalline spinel cobalt ferrite: Structural and magnetic studies

Ubaidullah

Kennedy

Aruldoss

et al. 2015

Materials Science in Semiconductor Processing

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Section: Magnetization Analysismentioning

confidence: 75%

Microwave combustion synthesis of zinc substituted nanocrystalline spinel cobalt ferrite: Structural and magnetic studies

Ubaidullah

Kennedy

Aruldoss

et al. 2015

Materials Science in Semiconductor Processing

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“…All CoZn ferrite have nearly homogeneous nano-size particles with particles size are increasing with increasing Zn 2+ ions. Nature of the surface shows aggregation coalescence character that may be refers to: the surface tension (ST) and magnetic dipoles interactions at the surface [24,34]. It can be also seen in Fig.…”

Section: Morphological Analysis Of Cozn Ferrite Nano-particlesmentioning

confidence: 76%

Altering the properties of the magnetic Co ferrite nanoparticles fabricated by modified inverse coprecipitation for high-frequency applications

Kershi

Aldirham

2020

Preprint

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Magnetic Co ferrite nanoparticles doped with non-magnetic ions (Zn2+) fabricated by modified inverse coprecipitation technique. X-ray calculations show that the average crystallite size (D) and the average lattice constant (a) of CoZn ferrite nanoparticles increase from 32.33 to 52.87 nm and from 8.39 to 8.41Ǻ respectively with increasing non-magnetic Zn2+ ions from 0.00 to 0.55. Morphological forms and M-O at A and B sites studied by SEM and FT-IR spectroscopy. Measurements of the structural, optical, electrical and magnetic characterization of the CoZn ferrite nanoparticles strongly depend on non-magnetic Zn2+ ions content (y). Non-magnetic ions transform Co ferrite from hard and dielectric nature to soft and semiconductor nature. Values of Coercivity and the remanence decrease as non-magnetic Zn2+ ions increases to the minimum values 955 Oe and 6 emu /g for the sample with Zn = 0.55. Co0.45Zn0.55Fe2O4 is might be suitable for high-frequency applications where it has the smallest value of optical gap, the largest value of resistivity and the lowest value of dielectric loss factor.

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“…The major vibrations happen between the sites of the tetrahedral and the sites of the octahedral surfaces and as a result of these vibrations led to a small red movement in the top together by (x) when increased cadmium ion (Zare et al, 2015) . Consequent to the increased contribution of this element to the electronic intensity of the iron oxygen and -in other words-it has an impact inductive physics or chemical effect by forming a coordinating insist on or parity with iron oxygen.…”

Section: Ftir Analysismentioning

confidence: 99%

Synthesis (Cd1-Xznxfe2o4)nanoparticles by Sol-Gel Combustion Method and Study It's Magnetic Properties

2020

jcr

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In the present work (Cd1-xZnxFe2O4) nanoparticles compositions with x= (0, 0.3, 0.5, 0.7,1.0) were prepared of Cd 2+ doped zinc ferrite nanoparticles by the sol-gel method. Sample analysis of X-ray diffraction (XRD) approved that ferrite has a single-phase structure in all samples. The average crystal size estimated from (41-45)nm by using the Debye-Scherrer formula. Field Emission Scanning electron microscopy (FE-SEM) micrographs appearance that all the samples possess nano-crystalline attitude. FT-IR spectra confirmed that the presence of metal oxides absorption bands at lower and higher frequency regimes, due to tetrahedral, and octahedral sites. The prepared magnetic properties of nanoparticles were analyzed by Vibrating Sample Magnetometer (VSM) which shows that saturation Cadmium changes by substitution of Zn 2+ in Zinc ferrite. These changes are formed by cations distribution among tetrahedral and octahedral sites and superexchange interaction decrease.

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Synthesis, structural and magnetic behavior studies of Zn–Al substituted cobalt ferrite nanoparticles

Cited by 50 publications

References 53 publications

Microwave combustion synthesis of zinc substituted nanocrystalline spinel cobalt ferrite: Structural and magnetic studies

Microwave combustion synthesis of zinc substituted nanocrystalline spinel cobalt ferrite: Structural and magnetic studies

Altering the properties of the magnetic Co ferrite nanoparticles fabricated by modified inverse coprecipitation for high-frequency applications

Synthesis (Cd1-Xznxfe2o4)nanoparticles by Sol-Gel Combustion Method and Study It's Magnetic Properties

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