Absorption-dominant mmWave EMI shielding films with ultralow reflection using ferromagnetic resonance frequency tunable M-type ferrites
Although there is a high demand for absorption-dominant electromagnetic interference (EMI)
shielding materials for 5G millimeter-wave (mmWave) frequencies, most current shielding …
shielding materials for 5G millimeter-wave (mmWave) frequencies, most current shielding …
Ca–Al double-substituted strontium hexaferrites with giant coercivity
We demonstrate that the simultaneous substitution of calcium and aluminum for strontium
and iron in strontium hexaferrite results in a significant increase of coercivity up to a record …
and iron in strontium hexaferrite results in a significant increase of coercivity up to a record …
Elucidation of phase evolution, microstructural, Mössbauer and magnetic properties of Co2+ Al3+ doped M-type BaSr hexaferrites synthesized by a ceramic method
M-type hexagonal ferrites with chemical composition Ba 0.5 Sr 0.5 Co x Al x Fe 12− 2x O 19
(x= 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) have been synthesized by a standard ceramic method. The …
(x= 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) have been synthesized by a standard ceramic method. The …
Hexaferrite materials displaying ultra-high coercivity and sub-terahertz ferromagnetic resonance frequencies
EA Gorbachev, LA Trusov, AE Sleptsova… - Materials today, 2020 - Elsevier
Abstract Single-domain Sr 1− x/12 Ca x/12 Fe 12− x Al x O 19 (x= 4–6) particles are
synthesized by a simple citrate auto-combustion method. The room temperature coercivity of …
synthesized by a simple citrate auto-combustion method. The room temperature coercivity of …
Magnetic anisotropy and (BH) max studies in microwave sintered Al-substituted strontium hexaferrite
Al-substituted strontium hexaferrite (SrFe 12-x Al x O 19) has been synthesized by the sol-
gel auto-combustion method, followed by microwave sintering at 1100° C. The Rietveld …
gel auto-combustion method, followed by microwave sintering at 1100° C. The Rietveld …
The effect of divalent ions of zinc and strontium substitution on the structural and magnetic properties on the cobalt site in cobalt ferrite
The effect of doping of divalent Sr 2+ and Zn 2+ ions on the structural and magnetic
properties of cobalt ferrite was investigated. For this purpose, the samples with the …
properties of cobalt ferrite was investigated. For this purpose, the samples with the …
[HTML][HTML] Frequency tunable Ni–Ti‐substituted Ba–M hexaferrite for efficient electromagnetic wave absorption in 8.2–75 GHz range
The development of 5G telecommunication technology has seen a high demand for effective
electromagnetic (EM) wave absorbers in the millimeter wave (mmWave) band. Because …
electromagnetic (EM) wave absorbers in the millimeter wave (mmWave) band. Because …
High-coercivity hexaferrite ceramics featuring sub-terahertz ferromagnetic resonance
Herein, we demonstrate for the first time compact ferrite ceramics with giant coercivity. The
materials are manufactured via sintering single-domain Sr0. 67Ca0. 33Fe8Al4O19 particles …
materials are manufactured via sintering single-domain Sr0. 67Ca0. 33Fe8Al4O19 particles …
Effect of apple cider vinegar agent on the microstructure, phase evolution, and magnetic properties of CoFe2O4 magnetic nanoparticles
M Afshari, AR Rouhani Isfahani… - … Journal of Applied …, 2019 - Wiley Online Library
In the present study, spinel structure CoFe2O4 nanoparticles were successfully synthesized
by the sol‐gel auto‐combustion technique. The effect of apple cider vinegar (ACV) addition …
by the sol‐gel auto‐combustion technique. The effect of apple cider vinegar (ACV) addition …
Enhancement of coercivity and saturation magnetization of Al3+ substituted M-type Sr-hexaferrites
F Rhein, R Karmazin, M Krispin, T Reimann… - Journal of Alloys and …, 2017 - Elsevier
Abstract Hexagonal SrFe 12-x Al x O 19 (x= 0, 0.2, 1, 2, 4) powders were prepared via
mechanochemical activation and subsequently calcined at different temperatures (between …
mechanochemical activation and subsequently calcined at different temperatures (between …