Hexagonal microstructure, magnetic and dielectric properties of iron deficient BaNixZnxFe12−2xO19 (x = 0.0−0.5) hexaferrites

Magnetic, Dielectric, and Thermal Properties of BaCo‐Hexaferrite Nanospheres

“…From these results, it was understood that the high ε' ≈9.54 & low ε“≈0.12 values can suggest high charge storage with low noise capacitor applications. [ 21 ] Besides, the AC‐electrical conductivity (σ ac = ε o ε”ω) was calculated [ 31 ] and few values were listed in Table 3. The log ω versus log σ ac plots ( Figure ) showed that the σ ac was gradually increasing with an increase in frequency till log ω = 6.5.…”

“…From these results, it was understood that the high 𝜖' ≈9.54 & low 𝜖"≈0.12 values can suggest high charge storage with low noise capacitor applications. [21] Besides, the AC-electrical conductivity (𝜎 ac = 𝜖 o 𝜖"𝜔) was calculated [31] and few values were listed in Table 3.…”

“…The Co-and Ni-substituted barium hexaferrite single crystals were grown by Vinnik et al, [17] to study the magnetic behavior. Sekhar et al, [20,21] synthesized BaNi x Mn x Fe 12−2x O 19 (x = 0.0−0.5) hexagonal plates, and BaNi x Zn x Fe 12−2x O 19 (x = 0.0−0.5) hexaferrites via hydrothermal process, and investigated for dielectric, impedance, and magnetic properties. The floating zone SrCo x Mg 0.125x -Fe 12−1.125x O 19 (x = 0.1, 0.2, and 0.3) samples were studied for observing the variation of magnetic properties as a function of temperature, and magnetic field.…”

“…Its chemical formula is Ba x Co 1-x Fe 12 O 19 with varying "x" value from 0.2-0.8. In the literature, many scientists focused on CoFe 12 O 19 , [5,6] BaFe 12 O 19 , [7][8][9] doped/substituted Co/Ba hexaferrites [10][11][12][13][14][15][16][17][18][19][20][21][22][23] for investigating various electrical, magnetic, and electromagnetic properties. Herein, the scientists preferred a few synthesis techniques like co-precipitation, sol-gel, conventional sintering, hydrothermal, etc., for the synthesis, and characterization of pure, and doped cobalt/barium hexaferrites, and their composites.…”

“…Herein, the scientists preferred a few synthesis techniques like co‐precipitation, sol‐gel, conventional sintering, hydrothermal, etc., for the synthesis, and characterization of pure, and doped cobalt/barium hexaferrites, and their composites. [ 2–23 ] In the literature, the pure form of cobalt hexaferrites, and barium hexaferrites were extensively studied. Hence, the recent researchers focused on doped, and substituted CoFe 12 O 19 & BaFe 12 O 19 materials.…”