Room Temperature Enhancement of Magnetoelectric Coupling in Multiferroic Nanocomposite of PbTiO3—SrFe12O19

Singh, Ajay; Singh, Vishal; Kaur, Balwinder; Kumari, Anju

doi:10.1007/s10948-022-06462-8

Cited by 3 publications

(2 citation statements)

References 52 publications

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“…This aligns with the characteristic peak of Fe 3+ , as supported by literature references. [ 22 ] For x = y = 0.2, the binding energies of Lu4 d 3/2 and Lu4 d 5/2 are noted at 206.2 and 196.3 eV, nearly identical to the binding energies of Lu 3+ in Lu 2 O 3 . Consequently, it can be inferred that the prepared sample contains lutetium in the form of Lu 3+ .…”

Section: Resultsmentioning

confidence: 71%

Structural Elucidation and Evaluation of Magnetic and Dielectric Properties of Lu–La Co‐substituted M‐Type Hexagonal Ferrites Synthesized by Chemical Co‐precipitation Method

Wang,

Han

2024

Physica Status Solidi (a)

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In this research, LuxLaySr1–yFe12–xO19, an M‐type strontium ferrite, is synthesized using the coprecipitation method with precursor chemicals. The samples undergo analysis for structure, morphology, and elemental composition through X‐ray diffraction (XRD) and scanning electron microscopy (SEM). Magnetic and dielectric properties are determined using a vibrating sample magnetometer (VSM) and a dielectric property measurement instrument (LCR), respectively. The primary objective of this study is to enhance the dielectric performance of the samples through rare‐earth element doping. The XRD analysis reveals that the samples display a hexagonal single‐phase magnetoplumbite crystal structure. SEM micrographs illustrate a regular hexagonal structure of the grains. VSM analysis affirms LuxLaySr1–yFe12–xO19 as a hard magnetic material with a high coercivity. As the rare‐earth element content increases, the coercivity of the samples significantly decrease from 2065.3 to 910.3 Oe. Dielectric property analysis demonstrates that augmenting the rare‐earth element (Lu–La) content notably increases the relative dielectric constant of the samples. In the low‐frequency region, the relative dielectric constant ranges from 6.71 × 103 to 1.28 × 105, while in the high‐frequency region, it ranges from 3.09 × 103 to 2.03 × 104. Samples doped with rare‐earth elements exhibit a high dielectric constant and low coercivity, rendering them suitable for applications in electromagnetic shielding materials. This can help reduce interference from magnetic fields on internal components while blocking electromagnetic waves.

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Section: Resultsmentioning

confidence: 71%

Structural Elucidation and Evaluation of Magnetic and Dielectric Properties of Lu–La Co‐substituted M‐Type Hexagonal Ferrites Synthesized by Chemical Co‐precipitation Method

Wang,

Han

2024

Physica Status Solidi (a)

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“…Its crystal structure belongs to the hexagonal closest packing, with a space group of P63/mmc and lattice parameters of a = b = 5.89Å and c = 23.15Å [34] . Each unit cell consists of 64 ions, including 2 formula units, 10 oxygen ion layers, Sr 2+ and O 2− ions occupying the larger interstitial sites, while Fe 3+ ions are inserted into the interstices within the oxygen positions [35][36][37] , Sr 2+ ions are situated within a densely-packed polygonal structure of oxygen positions, as shown in the green squares in Fig. 1 [38] .…”

mentioning

confidence: 99%

Structural and magnetic properties of Lu doped SrFe12O19 ferrites

Wang,

Han

2023

Preprint

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In this work, M-type strontium ferrite LuxSrFe12−xO19 (x = 0, 0.2, 0.4, 0.6) was prepared using a precursor chemical co-precipitation method. The structures, morphologies, and elemental compositions of the samples were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The magnetic properties of the prepared samples were determined using a vibrating sample magnetometer (VSM). XRD peaks revealed its crystalline nature, exhibiting a hexagonal single-phase magnetic spinel crystal structure. SEM micrographs displayed regular hexagonal grain structures, with the grain size gradually decreasing with increasing Lu3+ ions content. VSM analysis confirmed that LuxSrFe12−xO19 is essentially a hard magnetic material with significant coercivity, and the saturation magnetization and remanent magnetization exhibited a trend of initially decreasing and then increasing with the increasing Lu3+ ions content. Furthermore, Lu3+ ions substituted SrFe12O19 ferrites find wide applications in magnetic recording and memory devices.

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Role of Cr3+ and In3+ ions substitution on magnetic and dielectric properties for developing soft magnetic M-Type Sr nanohexaferrite

Khalil,

Gad,

Fakhry

et al. 2024

Materials Science in Semiconductor Processing

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Room Temperature Enhancement of Magnetoelectric Coupling in Multiferroic Nanocomposite of PbTiO3—SrFe12O19

Cited by 3 publications

References 52 publications

Structural Elucidation and Evaluation of Magnetic and Dielectric Properties of Lu–La Co‐substituted M‐Type Hexagonal Ferrites Synthesized by Chemical Co‐precipitation Method

Structural Elucidation and Evaluation of Magnetic and Dielectric Properties of Lu–La Co‐substituted M‐Type Hexagonal Ferrites Synthesized by Chemical Co‐precipitation Method

Structural and magnetic properties of Lu doped SrFe12O19 ferrites

Role of Cr3+ and In3+ ions substitution on magnetic and dielectric properties for developing soft magnetic M-Type Sr nanohexaferrite

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