Erbium-chromium substituted strontium hexaferrite particles: Characterization of the physical and Ku-band microwave absorption properties

Nikmanesh, Hossein; Hoghoghifard, Sedigheh; Hadi-Sichani, Behnaz; Moradi, Mahmood

doi:10.1016/j.mseb.2020.114796

Cited by 28 publications

(8 citation statements)

References 36 publications

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“…The substitutions for Fe 3+ of BaM-based can be divided into two main approaches: covalent cation substitution, such as Ga 3+ , In 3+ ; and Er 3+ and hetervalent cationic combination, such as Co 2+ -Ti 4+ , Co 2+ -Zr 4+ , and Ni 2+ -Ti 4+ [22][23][24][25][26]. However, recent studies have shown that the introduction of high-valence ions destroys the valence state equilibrium of barium ferrite, resulting in multiple absorption peaks, which can increase the bandwidth of electromagnetic wave absorption of the material [27][28][29].…”

Section: Introduction mentioning

confidence: 99%

A neutron diffraction investigation of high valent doped barium ferrite with wideband tunable microwave absorption

Hong

et al. 2022

J Adv Ceram

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The barium ferrite BaTixFe12−xO19 (x = 0.2, 0.4, 0.6, 0.8) (BFTO-x) ceramics doped by Ti4+ were synthesized by a modified sol—gel method. The crystal structure and magnetic structure of the samples were determined by neutron diffraction, and confirm that the BFTO-x ceramics were high quality single phase with sheet microstructure. With x increasing from 0.2 to 0.8, the saturation magnetization (Ms) decreases gradually but the change trend of coercivity (Hc) is complex under the synergy of the changed grain size and the magnetic crystal anisotropy field. Relying on the high valence of Ti4+, double resonance peaks are obtained in the curves of the imaginary part of magnetic conductivity (μ″) and the resonance peaks could move toward the low frequency with the increase of x, which facilitate the samples perform an excellent wideband modulation microwave absorption property. In the x = 0.2 sample, the maximum reflection loss (RL) can reach −44.9 dB at the thickness of only 1.8 mm, and the bandwidth could reach 5.28 GHz at 2 mm when RL is less than −10 dB. All the BFTO-x ceramics show excellent frequency modulation ability varying from 18 (x = 0.8) to 4 GHz (x = 0.4), which covers 81% of the investigated frequency in microwave absorption field. This work not only implements the tunable of electromagnetic parameters but also broadens the application of high-performance microwave absorption devices.

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Section: Introduction mentioning

confidence: 99%

A neutron diffraction investigation of high valent doped barium ferrite with wideband tunable microwave absorption

Hong

et al. 2022

J Adv Ceram

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“…We also used the low of approach to saturation (LAS) relation to figure out the temperature dependence of M S and H C of the ferrite nanoparticles. The LAS equation is used in high field region and it is written as [43,44]…”

Section: Magnetic Propertiesmentioning

confidence: 99%

Effect of praseodymium in cation distribution, and temperature-dependent magnetic response of cobalt spinel ferrite nanoparticles

Nikmanesh¹,

Jaberolansar²,

Kameli³

et al. 2022

Nanotechnology

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This work reports cation distribution, magnetic, structural, and morphological studies of rare-earth Pr doped cobalt ferrite nanoparticles CoFe2−xPrxO4 (x=0, 0.02, 0.04, 0.06 at. %) fabricated by sol-gel auto-combustion method. X-ray diffraction analysis, Field Emission Scanning Electron Microscopy (FESEM), High Resolution Transmission Electron Microscopy (HRTEM), Selected Area Electron Diffraction (SAED), and Fourier-Transform Infrared (FTIR) microscopy were utilized to study the structural and morphological characteristics of the prepared samples. Rietveld refinement by the Material Analyses Using Diffraction (MAUD) software showed the formation of mono-phase cubic spinel structure with Fd-3m space group; however, there was a trace of impure PrFeO3 phase for the sample CoFe1.96Pr0.04O4 (x=0.06). Cation distribution was inferred from the XRD patterns using MAUD program. FESEM analysis revealed the spherical-shaped particles with dimensions close to the data extracted from XRD analysis and HRTEM images confirmed it. FTIR measurements revealed the presence of two prominent stretching vibrational modes confirming the successful formation of ferrite spinel structure. Magnetic properties of the nanoparticles were measured at two different temperatures 300 K and 10 K. For the low temperature of 10 K a high sensitive measurement method as Superconducting Quantum Interference Device (SQUID) magnetometry was used and Vibrating Sample Magnetometer (VSM) recorded the magnetic data at 300 K. Comparison of the magnetic results exhibited a significant enhancement with temperature drop due to the reduction in thermal fluctuations. Paramagnetic nature of rare-earth ions may be the main reason for MS decrement from 76 emu/g (x=0.0) to 60 emu/g (x=0.02) at 300 K. At 10 K, the estimated cation distribution played a vital role in justification of obtained magnetic results. All the obtained data showed that the synthesized magnetic nanoparticles can be implemented in permanent magnet industry and information storage fields, especially when it comes to lower temperatures.

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Section: Properties Of Hexagonal Ferritesmentioning

confidence: 99%

“…[ 215 ] Efforts have been made to enhance the magnetic characteristics of hexaferrite by cationic substitution to meet a variety of applications. [ 148,216 ] These includes efforts on altering the intrinsic properties of hexaferrites by replacing with either single or multiple trivalent metal ions such as La 3+ , [ 217–221 ] Tb 3+ , [ 222,223 ] Nd 3+ , [ 138–140,224–226 ] Eu 3+ , [ 227 ] Dy 3+ , [ 228,229 ] Sm 3+ , [ 230,231 ] Cr 3+ , [ 232,233 ] Al 3+ , [ 185,186,234,235 ] Gd 3+ , [ 236–238 ] Sc 3+ , [ 239 ] Er 3+ , [ 240–242 ] Pr 3+ , [ 243 ] Yb 3+ , [ 244 ] Ce 3+ , [ 245 ] La 3+ –Pr 3+ , [ 246 ] La 3+ –Nd 3+ , [ 247 ] Nd 3+ –Sm 3+ , [ 248 ] Nb 3+ –Y 3+ , [ 249 ] La 3+ –Ce 3+ , [ 250 ] Er 3+ –Cr 3+ , [ 251 ] Dy 3+ –Nd 3+ –Pr 3+[ 252 ] or a suitable mix of divalent and trivalent ions such as Tb 3+ –Mn 2+ , [ 253 ] Nd 3+ –Co 2+ , [ 254 ] Gd 3+ –Co 2+ , [ 255 ] Pr 3+ –Mn 2+ , [ 256 ] Sm 3+ –Co 2+ , [ 257 ] La 3+ –Co 2+ , [ 258 ] La 3+ –Mn 2+ , [ 259 ] Pr 3+ –Co 2+ , [ 260 ] Cu 2+ –Cr 3+ , [ 261 ] Al 3+ –Mg 2+ , [ 262 ] Ce 3+ –Zn 2+ , [ 263 ] Ce 3+ –Co 2+ , [ 264 ] Gd 3+ –Mn 2+ ‐Co 2+ , [ 265 ] Ca 2+ –La 3+ –Co 2+[ 266 ] or tetravalent Zr 4+[ 267 ] or a divalent and tetravalent ions such as Co 2+ –Si 4+ , [ 268 ] Cu 2+ –Zr 4+,[ 269 ] Zr 4+ –Co 2+ , [...…”

Section: Properties Of Hexagonal Ferritesmentioning

confidence: 99%

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

Mohammed

Mohammed²,

Srivastava

2022

Cryst. Res. Technol.

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With the fast growth of wireless communication technology in high‐frequency ranges, electromagnetic (EM) interference has become a growing concern that has drawn international attention. The development of materials that can absorb EM radiation is a crucial solution. This review provides a detailed overview of ferrites, specifically hexagonal ferrites and their composites for microwave (MW) absorption. It examines hexagonal ferrite classifications based on the stacking order of their fundamental blocks and their synthesis methods and strategies for improving their magnetic properties. On the other hand, this review included a detailed examination of hexagonal ferrites–conducting polymer, hexagonal ferrites–2D materials, and hexagonal ferrite–other nanomaterials composites for MW absorption applications. Enhancing MW absorption in hexagonal ferrites‐based microwave absorption materials (MAMs) regulates their EM characteristics, improves impedance matching, and creates a diversity of loss mechanisms. In addition, the limitations, challenges, and opportunities of hexagonal ferrites‐based MAMs are discussed, which will be helpful to those working in related areas. As a general application potential, it is worth mentioning that, as a result of recent promising findings in the synthesis of hexagonal ferrites‐based composites, hexaferrite‐based composites are suitable devices in the area of microwave absorption.

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Erbium-chromium substituted strontium hexaferrite particles: Characterization of the physical and Ku-band microwave absorption properties

Cited by 28 publications

References 36 publications

A neutron diffraction investigation of high valent doped barium ferrite with wideband tunable microwave absorption

A neutron diffraction investigation of high valent doped barium ferrite with wideband tunable microwave absorption

Effect of praseodymium in cation distribution, and temperature-dependent magnetic response of cobalt spinel ferrite nanoparticles

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

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