Effect of rare earth elements on low temperature magnetic properties of Ni and Co-ferrite nanoparticles

Boda, Nehru; Boda, Gopal; Naidu, K. Chandra Babu; Srinivas, M.; Batoo, Khalid Mujasam; Ravinder, D.; Reddy, A. R.

doi:10.1016/j.jmmm.2018.10.023

Cited by 83 publications

(39 citation statements)

References 29 publications

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“…These samples expressed the morphology consisting of spherical particles and tiny spheres with homogeneous distribution. 1 The value of particle size was noted to be almost in good agreement with the crystallite size calculated from the X-ray diffraction pattern. The agglomerated nanoparticles were also observed in the SEM pictures.…”

Section: Surface Morphological Analysissupporting

confidence: 68%

“…Herein, the average particle size was calculated with the help of linear intercept method (LPIM): G = 1.5L/MN, whereas L = the test line length, M = the magnification, N = the total number of particles intersecting the test line. 1 The value of particle size was noted to be almost in good agreement with the crystallite size calculated from the X-ray diffraction pattern. In addition, the selected area electron diffraction pattern (SAED) was recorded and shown in Figure 5B.…”

Section: Surface Morphological Analysissupporting

confidence: 68%

“…1 However, these parameters mainly depend upon the type of cations, charge carriers (electrons or holes), and cationic distribution at A-and B-sites (tetrahedral and octahedral, respectively). 1 However, these parameters mainly depend upon the type of cations, charge carriers (electrons or holes), and cationic distribution at A-and B-sites (tetrahedral and octahedral, respectively).…”

Section: Introductionmentioning

confidence: 99%

“…The spinel ferrite materials are the good candidates for distinct scientific and industrial fields due to their high saturation magnetization, high magnetic permeability, low electrical conductivity, and inexpensive. 1 However, these parameters mainly depend upon the type of cations, charge carriers (electrons or holes), and cationic distribution at A-and B-sites (tetrahedral and octahedral, respectively). 1 In view of this, many scientists put forth on reporting different properties which are well suited for high frequency applications.…”

Section: Introductionmentioning

confidence: 99%

“…1 However, these parameters mainly depend upon the type of cations, charge carriers (electrons or holes), and cationic distribution at A-and B-sites (tetrahedral and octahedral, respectively). 1 In view of this, many scientists put forth on reporting different properties which are well suited for high frequency applications. Therefore, these ferrite materials can be extensively useful for electromagnetic device applications.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic and antimicrobial properties of cobalt‐zinc ferrite nanoparticles synthesized by citrate‐gel method

Vinuthna

Naidu

et al. 2019

Int J Applied Ceramic Tech

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The cobalt‐zinc ferrite (CZF) nanomaterials were prepared by citrate‐gel method, and further calcined at 600°C. The single‐phase cubic spinel structure of CZF was confirmed using the X‐ray diffraction pattern. The average crystallite size was found to be in the range of 22‐29 nm. The surface morphology was examined using the scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The average particle size of Co0.6Zn0.4Fe2O4 was determined to be 19 nm using TEM study which is supporting the average crystallite size measured from the X‐ray diffraction studies. The Fourier‐transform infrared spectra revealed the two strong absorption bands in the series of ferrites between 4500 and 500 cm−1 and these are responsible for the characteristic of spinel ferrites. The presence of elements Cu, Zn, and Co of CZF was confirmed by the elemental spectral signals of energy dispersive spectroscopy. At room temperature, the magnetic measurements of pure ZnFe2O4 and Co0.6Zn0.4Fe2O4 were evaluated based on hysteresis curves (M‐H curves). The results expressed that the addition of nonmagnetic Zn2+ ions increases the magnetic behavior in the mixed CZF samples. The antimicrobial activity of the ZnFe2O4 and Co0.6Zn0.4Fe2O4 nanoferrites was tested against harmful microbes.

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Section: Surface Morphological Analysissupporting

confidence: 68%

Section: Surface Morphological Analysissupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…1 However, these parameters mainly depend upon the type of cations, charge carriers (electrons or holes), and cationic distribution at A-and B-sites (tetrahedral and octahedral, respectively). 1 In view of this, many scientists put forth on reporting different properties which are well suited for high frequency applications. Therefore, these ferrite materials can be extensively useful for electromagnetic device applications.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Magnetic and antimicrobial properties of cobalt‐zinc ferrite nanoparticles synthesized by citrate‐gel method

Vinuthna

Naidu

et al. 2019

Int J Applied Ceramic Tech

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Influence of Dysprosium Doping on Structural, Magnetic, and Optical Properties of Ni–Zn Ferrites

Ganesh

Sandeep

Chanti

et al. 2023

Physica Status Solidi (a)

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The spinel ferrites with the compositional formula Ni0.8Zn0.2Fe2−xDyxO4 (x = 0, 0.004, 0.008, 0.012, 0.016) have been prepared using the sol–gel method. The X‐ray diffraction measurements confirm the cubic spinel structure of the sample with a space group of Fd‐3m. Morphological analysis of scanning electron microscope images reveals that the particles are spherical in shape. Energy dispersive X‐ray spectroscopy (EDX) confirms the elemental composition. Thermogravimetric analysis (TGA)/differential scanning calorimetry (DSC) analysis of synthesized dysprosium (Dy) doped Ni–Zn ferrites are carried out from 25 to 700 °C. Fourier‐transform infrared (FTIR) spectroscopy studies reveal the stretching and bending vibrations of the various bonds presented in the compounds. The UV–vis absorption spectrum indicates the energy gap values which small decrease with the Dy concentration increase. Raman spectroscopy reveals the crystal distortion and phases of the samples. The room temperature magnetic measurements (M–H loops) are carried out to study the effect of Dy doping on magnetic properties.

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Magnetic, Optical, Electrical and Antimicrobial Properties of MnCuZnFe₂O₄ Nanoparticles

Surendra Babu,

Bhonsle,

H.V.

et al. 2024

ChemistrySelect

Self Cite

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The Mn0.92Cu0.08‐yZnyFe2O4 (y=0.02, 0.04, 0.06 and 0.08) nanoparticles (MCZF NPs) were synthesized via the hydrothermal process at low operating temperature. The MCZF system generated a cubic spinel structure as seen by the X‐ray diffraction patterns. The average crystallite size was observed to be increasing from 25 to 30 nm. The broad (γ1) and narrow (γ2) absorption bands were seen in FTIR spectra and the cation distributions at tetrahedral (A) and octahedral (B) sites, respectively, was indicated. The surface morphology was analyzed using electron microscopy. Clarification was provided for the dependence of the optical bandgap shift (Eg~1.96–2.15 eV) on the concentration of substituent. The superparamagnetic nature of MCZF can be advantageous for biomedical applications and it was demonstrated by the magnetization versus applied magnetic field (M−H) loops. Small values of remanence magnetization (Mr) and coercivity (Hc) were found using magnetization versus magnetic field (M−H) curves at y=0.02, 0.04, 0.06, and 0.08. This proved that MCZF NPs exhibited the superparamagnetic behavior. The cation distribution at two sublattices was also estimated using a two‐sublattice model. The greatest zone of inhibition in an antibacterial study of MCZF (produced by the green method) was 10.8 mm for Pseudomonosa aeruginosa and 9.4 mm for Staphylococcus aureus.

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Effect of rare earth elements on low temperature magnetic properties of Ni and Co-ferrite nanoparticles

Cited by 83 publications

References 29 publications

Magnetic and antimicrobial properties of cobalt‐zinc ferrite nanoparticles synthesized by citrate‐gel method

Magnetic and antimicrobial properties of cobalt‐zinc ferrite nanoparticles synthesized by citrate‐gel method

Influence of Dysprosium Doping on Structural, Magnetic, and Optical Properties of Ni–Zn Ferrites

Magnetic, Optical, Electrical and Antimicrobial Properties of MnCuZnFe₂O₄ Nanoparticles

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Effect of rare earth elements on low temperature magnetic properties of Ni and Co-ferrite nanoparticles

Cited by 83 publications

References 29 publications

Magnetic and antimicrobial properties of cobalt‐zinc ferrite nanoparticles synthesized by citrate‐gel method

Magnetic and antimicrobial properties of cobalt‐zinc ferrite nanoparticles synthesized by citrate‐gel method

Influence of Dysprosium Doping on Structural, Magnetic, and Optical Properties of Ni–Zn Ferrites

Magnetic, Optical, Electrical and Antimicrobial Properties of MnCuZnFe2O4 Nanoparticles

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Magnetic, Optical, Electrical and Antimicrobial Properties of MnCuZnFe₂O₄ Nanoparticles