Structural, spectral, dielectric and magnetic properties of Co–Cr-substituted hexagonal ferrites with X-type structure

Effect of Cd on Structural, Spectral, Morphological and Dielectric Properties of Sr1-xCdxZn2Fe4O11 R-type Hexaferrites Synthesized via Sol-gel Technique

“…It has also been stated that hexagonal ferrites with an H C greater than Mr/2 are considered hard nature magnets that can be put to service in high-frequency settings. Since the H C of the currently studied composition is greater than Mr/2, the synthesized samples are considered suitable for high-frequency applications [ 53 ]. The low coercivity from 203.20 Oe to 215.80 Oe of the Cd-substitution R-type ferrite shows that materials with moderate coercivity can be used for security, detecting, switching, and a valuable resource for longitudinal recording media.…”

Structural, Morphology, Electrical Polarization and FTIR Properties of Zn Substituted T-type Hexagonal Ferrites

“…In hexagonal ferrites, this shifting of peaks after substitution is commonly present. Moreover, some peaks disappeared after the substitution of Zn 2+ due to the reduction of the Sin 2 θ= λ 2 /3a 2 (h 2 + h𝑘 + 𝑘 2 ) + λ 2 /4c 2 (l) 2 (1)…”

“…Ferrites materials have received much attention among these nanomaterials because of their magnetic and electrical properties that are appropriate for absorbing high-frequency bands. The benefit of ferrites is that they are less expensive and more efficient than other materials [2]. Because of its peculiar structural and magnetic properties, ferrites have been used in several technological applications [3].…”

“…Among the ferrites materials, the hexagonal ferrites are widely used in microwave and electrical devices due to their flexible magnetic characteristics [5]. Due to various excellent stability, relatively inexpensive, as well as low conductivity, hexagonal ferrites have played an essential role in numerous industrial applications [2]. Due to the fact that these materials have been known for quite some decades, there has been a recent interest in them due to the occurrence of single phase magnetoelectric/multiferroic interactions as well as many exotic purposes such as in the domain of microwave/GHz frequencies, etc.…”

“…[6]. Hexagonal structure ferrites being categorized into seven types: M, Y, W, U, X, Z, and R-type [2]. Among all of these kinds, M-type hexagonal ferrites are the most commonly employed for permanent magnets [3].…”