Absorption-dominant mmWave EMI shielding films with ultralow reflection using ferromagnetic resonance frequency tunable M-type ferrites

H Lee, SH Ryu, SJ Kwon, JR Choi, S Lee, B Park - Nano-Micro Letters, 2023 - Springer
Although there is a high demand for absorption-dominant electromagnetic interference (EMI)
shielding materials for 5G millimeter-wave (mmWave) frequencies, most current shielding …

Tunable sub-terahertz resonance absorption in high-coercivity magnetodielectric ceramics

EA Gorbachev, LN Alyabyeva, AV Pronin… - Materials …, 2024 - pubs.rsc.org
Recently, giant coercivities (20–42 kOe) and sub-terahertz natural ferromagnetic resonance
(NFMR) at 100–300 GHz were observed for single-domain M-type hexaferrite particles with …

Tuning the microstructure, magnetostatic and magnetodynamic properties of highly Al-substituted M-type Sr/Ca hexaferrites prepared by citrate-nitrate auto …

EA Gorbachev, VA Lebedev, ES Kozlyakova… - Ceramics …, 2023 - Elsevier
Double substitution of strontium hexaferrite by calcium and aluminum leads to a tremendous
rise of hard magnetic properties, such as coercivity and natural ferromagnetic resonance …

Magnetic anisotropy and (BH) max studies in microwave sintered Al-substituted strontium hexaferrite

SN Rout, MK Manglam, J Mallick, S Datta… - Physica B: Condensed …, 2023 - Elsevier
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 …

Hard ferrite magnetic insulators revealing giant coercivity and sub-terahertz natural ferromagnetic resonance at 5–300 K

EA Gorbachev, ES Kozlyakova, LN Alyabyeva… - Materials …, 2023 - pubs.rsc.org
The temperature behavior of the magnetic properties is crucial for the application of
magnetic materials. Recently, giant room temperature coercivities (20–36 kOe) and sub …

Tailoring electromagnetic wave absorption properties of M-type barium ferrite through Nd3+–(Nb5+/Ta5+) cosubstitution

H Wei, Z Huang, J Cui, P Zhang, S Ma, W Sun… - Materials Today …, 2024 - Elsevier
M-type barium ferrites (Ba 1− x Nd x Fe 12− x M x O 19, x= 0–0.3) with Nd 3+–M 5+(M= Nb
5+ and Ta 5+) ions substituting Ba 2+ and Fe 3+ ions were prepared via a solid-state …

Hard magnetic colloidal nanoplates with tunable size for magneto-optical applications

J Chen, J Duan, EO Anokhin, Z **a… - Journal of Materials …, 2024 - pubs.rsc.org
We have synthesized highly anisotropic plate-like nanoparticles of aluminum-substituted
strontium hexaferrite via the crystallization of 4Na2O× 9SrO× 5.5 Fe2O3× 4.5 Al2O3× 4B2O3 …

Breaking the limitation of terahertz resonances in ferrites through 4D printing of metamaterials

X Zeng, P Jia, D Pan, Y Guo, X **, P Li, L Qian… - Additive …, 2024 - Elsevier
Abstract 4D printing allows the creation of 3D-printed structures with a variety of new
functionalities that respond to external stimuli, including electromagnetic properties, for …

A comparative study of the correlation among the phase formation, crystal stability and magnetic properties of SrFe12-xMxO19 (M= Al3+, Cr3+ and Mn3+, x= 0–0.5) …

K Icin, S Akyol, F Alptekin, A Yıldız, SE Sünbül… - Journal of Solid State …, 2023 - Elsevier
The aim of this study is to enhance the magnetic and thermal properties of strontium
hexaferrites by substituted with Al, Cr, and Mn ions instead of Fe, and to elucidate the …

Modifiable natural ferromagnetic resonance frequency and strong microwave absorption in BaFe12-y-2xAlySnxMnxO19 M-type hexaferrite

X Wang, H Yan, S Zhao, S Liu, H Chang - Journal of Magnetism and …, 2023 - Elsevier
The site preferences of the ions in M-type BaFe 12-y-2 x Al y Sn x Mn x O 19 were
determined from the XRD patterns refined with the Fullprof program. Due to the preferential …