Investigation of structural, optical, magnetic, and dielectric properties of calcium hexaferrite synthesized in presence of Azadirachta indica and Murraya koenigii leaves extract

Magnetic Nanoparticles for Drug Delivery Applications

“…Until now, a great variety of drug delivery systems employing magnetic nanoparticles has been developed. Numerous methods of synthesis have been implemented according to their merits in preparation of MNPs for specific applications [84,85]. The size and shape of nanoparticles deeply affect the use as drug vehicles as well as other biomedical applications.…”

Influence of Gd and Ni doping on the structural, morphological, and magnetic properties of M-type calcium hexaferrite

“…[8][9][10][11] According to structural differences, ferrites have been categorized into four primary families: spinel, orthoferrite, garnet, and hexagonal, 12,13 ), where B represents a bivalent cation such as Ba 2+ , Sr 2+ , Pb 2+ , Cd 2+ , and Ca 2+ and Me represents the bivalent transition metals. 9,14,15 Due to the superexchange interaction, all hexaferrites exhibit ferrimagnetic behaviour. 12 The M-type hexaferrites are widely used in industry because of their comparatively low cost and ease of synthesis.…”

“…1–7 Hexaferrites are widely applicable due to their specific properties like high saturation magnetization, corrosion resistance, high coercivity, and unique chemical stability and their significant magneto crystalline anisotropy constant is beneficial in high-frequency devices. 8–11 According to structural differences, ferrites have been categorized into four primary families: spinel, orthoferrite, garnet, and hexagonal, 12,13 in which hexagonal ferrites are further classified into six categories based on the chemical structures such as X-type (B 2 Me 2 Fe 28 O 46 ), Y-type (B 2 Me 2 Fe 12 O 22 ), Z-type (B 3 Me 2 Fe 24 O 41 ), M-type (BFe 12 O 19 ), W-type (Bme 2 Fe 16 O 27 ), and U-type (B 4 Me 2 Fe 36 O 60 ), where B represents a bivalent cation such as Ba 2+ , Sr 2+ , Pb 2+ , Cd 2+ , and Ca 2+ and Me represents the bivalent transition metals. 9,14,15 Due to the superexchange interaction, all hexaferrites exhibit ferrimagnetic behaviour.…”

“…8–11 According to structural differences, ferrites have been categorized into four primary families: spinel, orthoferrite, garnet, and hexagonal, 12,13 in which hexagonal ferrites are further classified into six categories based on the chemical structures such as X-type (B 2 Me 2 Fe 28 O 46 ), Y-type (B 2 Me 2 Fe 12 O 22 ), Z-type (B 3 Me 2 Fe 24 O 41 ), M-type (BFe 12 O 19 ), W-type (Bme 2 Fe 16 O 27 ), and U-type (B 4 Me 2 Fe 36 O 60 ), where B represents a bivalent cation such as Ba 2+ , Sr 2+ , Pb 2+ , Cd 2+ , and Ca 2+ and Me represents the bivalent transition metals. 9,14,15 Due to the superexchange interaction, all hexaferrites exhibit ferrimagnetic behaviour. 12 The M-type hexaferrites are widely used in industry because of their comparatively low cost and ease of synthesis.…”

“…Fe 3+ -O 2À stretching vibrations are shown by the band (n 1 ) at the tetrahedral (A) site, whereas trivalent metaloxygen (M-O) vibrations are indicated by the band (n 2 ) at the octahedral (B) site. The tetrahedral cluster (n 1 ) has a shorter bond length than octahedral clusters (n 2 ) because it has a stronger vibrational mode than octahedral clusters 9,66.…”