Structural and Magnetic Studies of Al-Doped Y2.8 La0.2 Fe5 O12 Nanoferrites Prepared by a Sol-Gel Route

Bhalekar, A. R.; Singh, L. N.

doi:10.1007/s10948-020-05422-4

Cited by 17 publications

(3 citation statements)

References 52 publications

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“…The X-ray density (ρ m ) was observed to be smaller in Ni substitution as compared to La substitution. The decrease in the X-ray density was due to the higher rate of decrease of molecular weight as compared to the rate of decrease of cell volume when we substitute Ni in place of La [29].…”

Section: Resultsmentioning

confidence: 99%

Comparative study of structural and magnetic properties of Ni and La substituted calcium hexaferrite

Shinde¹,

Dahotre

2021

Cerâmica

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Ni and La substituted M-type Ca hexaferrite of composition CaNi 1 Fe 11 O 19 and CaLa 1 Fe 11 O 19 were synthesized by sol-gel auto combustion method using metal nitrates as oxidants and citric acid as reducing agent. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDAX), and vibrating sample magnetometry (VSM). XRD study revealed that both samples had lattice parameters a and c within the range of M-type hexaferrite. The SEM micrographs displayed grains having irregular shapes and sizes in the nanometer range. FTIR peaks confirmed the structure of M-type hexaferrite. EDAX spectra showed the homogeneous distribution of ions in both samples. In CaNi 1 Fe 11 O 19 , we found saturation magnetization (M s ) of 12.18 emu/g and coercivity (H c ) of 193.2 Oe. On the other hand, in CaLa 1 Fe 11 O 19 , we found M s of 0.55 emu/g and H c of 404.4 Oe. Saturation magnetization and coercivity values obtained for La substituted M-type Ca hexaferrite are suitable for low-density magnetic recording devices.

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Section: Resultsmentioning

confidence: 99%

Comparative study of structural and magnetic properties of Ni and La substituted calcium hexaferrite

Shinde¹,

Dahotre

2021

Cerâmica

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“…This decreasing in value of M s can be explained on the basis that as the temperature increases the chance of substitution of nonmagnetic Al is more, which further weaken a-d super exchange interaction. [4] Both value of H c and M r is maximum for sample sintered at 900 °C.…”

Section: Vsmmentioning

confidence: 91%

“…[1][2][3] From these magnetic materials ferrites exhibit ferrimagnetism are continuously attracting the focus of many researchers and industrialist due to their good magnetic as well as dielectric properties. [4,7] These iron containing ferrites has numerous applications in communication, microwave devices, miniaturization of devices, sensors, radio frequency circuits, switching cores, high-frequency application, and many more. [5][6][7][8][9][10][11][12] Ferrites are categories as soft ferrites such as spinel and garnet having cubic structure, and hard ferrite that is hexaferrite having hexagonal structure.…”

Section: Introductionmentioning

confidence: 99%

Influence of Temperature on Structural and Magnetic Properties of Gd₃Al_xFe₅₋_xO₁₂ (x = 2)

Sharma

Godara

Maji

et al. 2021

Crystal Research and Technology

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This research work explores the effect of sintering temperature on morphology and magnetic properties of aluminum substituted gadolinium iron garnet Gd 3 Al x Fe 5−x O 12 (x = 2). Sol-gel autocombustion method is adopted to prepare Gd 3 Al x Fe 5−x O 12 , and further sintered at 900, 1000, and 1100 °C. X-ray diffraction (XRD) confirms the formation of garnet phase structure. Fourier transformation infrared ray further stands with result of XRD that reveals the presence of garnet phase. Field emission scanning microscope analysis shows the formation of average grain size 4, 6, and 13 nm for 900, 1000, and 1100 °C, respectively. Vibrating sample magnetometer results show that the coercivity decreases with increases in temperature, which indicates that this material can be used in switching devices. The calculated value of microwave operating frequency reveals that these materials can be used in ultrahigh-frequency region.

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Effects of different light and heavy rare-earth compositions on structure and magnetic properties of high-entropy garnet ceramics

Chen,

Yang,

Zhang

et al. 2024

J Mater Sci: Mater Electron

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Structural and Magnetic Studies of Al-Doped Y2.8 La0.2 Fe5 O12 Nanoferrites Prepared by a Sol-Gel Route

Cited by 17 publications

References 52 publications

Comparative study of structural and magnetic properties of Ni and La substituted calcium hexaferrite

Comparative study of structural and magnetic properties of Ni and La substituted calcium hexaferrite

Influence of Temperature on Structural and Magnetic Properties of Gd₃Al_xFe₅₋_xO₁₂ (x = 2)

Effects of different light and heavy rare-earth compositions on structure and magnetic properties of high-entropy garnet ceramics

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Structural and Magnetic Studies of Al-Doped Y2.8 La0.2 Fe5 O12 Nanoferrites Prepared by a Sol-Gel Route

Cited by 17 publications

References 52 publications

Comparative study of structural and magnetic properties of Ni and La substituted calcium hexaferrite

Comparative study of structural and magnetic properties of Ni and La substituted calcium hexaferrite

Influence of Temperature on Structural and Magnetic Properties of Gd3AlxFe5−xO12 (x = 2)

Effects of different light and heavy rare-earth compositions on structure and magnetic properties of high-entropy garnet ceramics

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Influence of Temperature on Structural and Magnetic Properties of Gd₃Al_xFe₅₋_xO₁₂ (x = 2)