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) ferrite permanent magnets

Effect of divalent ion of strontium substitution on the structural, optical, magnetic and blood compatibility studies in cobalt ferrite

“…Figure 4 exhibits the infrared transmittance spectra of Sr-substituted Co-ferrite materials. In the figure, the vibrational frequencies of Sr-O or Co-O bonds (v 1 ) and Fe-O bonds (v 2 ) range lines up from 600.6 to 598.7 cm −1 and from 423.6 to 426.5 cm −1 , respectively [59,60].…”

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

“…The potential uses of hexaferrite materials are in electronic gadgets, magnetic recording media, microwave absorbers, data storage, electric motors, etc. 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.…”

Experimental and Theoretical Realization of Morphology and Frequency Tuned Charge Transport Dynamics in Co-Zn Doped SrM Hexaferrite: Electrical, Impedance and Relaxation Realm

“…Preferably, the occupancy of distinct Fe sites of M-type hexaferrite influences their electrical characteristics. 4 Strontium hexaferrite (SrM) comprises 5 distinct Fe-sub-lattices, namely 12k, 2b, 2a, 4f 2, and 4f 1 . 5,6 The occupancy of octahedral lattice sites (12k, 2a, and 4f 2 ) governed the electrical characteristics of the material.…”