SYNTHESIS, STRUCTURAL AND OPTICAL PROPERTIES OF Zn-SUBSTITUTED Co W-FERRITES BY COPRECIPITATION METHOD

Amin, Nasir; Akhtar, Maria; SABIR, M.; MAHMOOD, K.; ALI, A.; MUSTAFA, G.; Hasan, M.S.; BIBI, A.; IQBAL, M. Z.; IQBAL, F.; Rehman, Atta Ur; ASLAM, A.; Mehmood, Khansa; LATIF, Z.; HUSSAIN, K.; Nawaz, Zarqa; Fatima, Miraj; NADEEM, S.; SHARIF, S.; JILANI, M.; GHAFFAR, A.; JAVEED, K.; ZAKIR, R.; AMEEN, A.; Arshad, M. Imran

doi:10.15251/jor.2020.161.11

Cited by 18 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6 that the optical bandgap is drastically decreased by the incorporation of a small amount of Ni 2+ at values of x up to x = 0.2, however, a further increase in the Ni 2+ concentration does not have a significant effect on the bandgap values. [26,31,[40][41][42][43][44] These results suggest that the synthesized samples are potential candidates for use in various optoelectronic applications.…”

Section: Uv-vis Analysismentioning

confidence: 99%

Tailoring the optical and magnetic properties of La-BaM hexaferrites by Ni substitution

et al. 2022

View full text Add to dashboard Cite

We investigate the impact of Ni insertion on the structural, optical, and magnetic properties of Ba0.8La0.2Fe12–x Ni x O19 hexaferrites (Ni substituted La-BaM hexaferrites). Samples were prepared using the conventional co-precipitation method and sintered at 1000 °C for 4 hours to assist the crystallization process. An analysis of the structure of the samples was carried out using an x-ray diffraction (XRD) spectrometer. The M-type hexagonal structure of all the samples was confirmed using XRD spectra. The lattice parameters a and c were found to be in the ranges of 5.8925±0.001 nm–5.8952±0.001 nm and 23.2123±0.001 nm–23.2219±0.001 nm, respectively. The M-type hexagonal nature of the prepared samples was also indicated by the presence of corresponding FT-IR bands and Raman modes in the FT-IR and Raman spectra, respectively. EDX results confirmed the successful synthesis of the samples according to the required stoichiometric ratio. A UV-vis spectrometer was used to record the absorption spectra of the prepared samples in the wavelength range of 200 nm–1100 nm. The optical energy bandgap of the samples was found to be in the range of 1.21 eV–3.39 eV. The M–H loops of the samples were measured at room temperature at an applied magnetic field range of 0 kOe–60 kOe. A high saturation magnetization of 99.92 emu/g was recorded in the sample with x = 0 at a microwave operating frequency of 22.2 GHz. This high value of saturation magnetization is due to the substitution of La3+ ions at the spin-up (12k, 2a, and 2b) sites. The Ni substitution is proven to be a potential candidate for the tuning of the optical and magnetic parameters of M-type hexaferrites. Therefore, we suggest that the prepared samples are suitable for use in magneto-optic applications.

show abstract

Section: Uv-vis Analysismentioning

confidence: 99%

Tailoring the optical and magnetic properties of La-BaM hexaferrites by Ni substitution

et al. 2022

View full text Add to dashboard Cite

show abstract

“…It was observed that the dislocation density was increased with the addition of Zn from 4.06 × 10 -4 nm -2 to 6.46 × 10 -4 nm -2 , as presented in Table 1. The Braggs equation was used to determine the interplanar distance (d), that is given below [10][11][12][13];…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

Tailoring of Structural, electrical, and dielectric properties of Mg-Mn-Bi nanoferrites with addition of Zn

Ali,

Akhtar,

Arshad

et al. 2023

JOR

View full text Add to dashboard Cite

Zin substituted Mg-Mn-Bi nano ferrites, Mg0.5 𝑀𝑀𝑀𝑀0.5−x 𝑍𝑍𝑍𝑍x 𝐵𝐵𝑖𝑖0.05Fe1.95O4 (x= 0, 0.125, 0.25, 0.375, 0.5) were synthesized using the sol gel auto combustion method. Structural parameters were analyzed through x-ray diffraction. It was revealed that all the samples are single phase spinel structure with Fd-3m space group and crystallite size, lattice constant and x-ray densities were varying with Zn concentration. RAMAN analysis showed the cation vibration. The DC resistivity was enhanced of all the samples with increasing concentration of Zn. The substitution of Zn also responsible for the variation of magnetic parameters as observed with VSM. Due to these remarkable properties all the prepared samples may be utilized at high frequency in microwave devices.

show abstract

“…For the synthesis of spinel structure materials, different synthesized techniques were used, including the solgel auto combustion technique [26,27], solvothermal process [28], and coprecipitation route [29][30][31]. The auto combustion (sol-gel) process is commonly used because of its easy synthesis and economical fabrication [25].…”

Section: Introductionmentioning

confidence: 99%

Structural, dielectric, and thermal properties of Zn and Cr doped Mg- Co spinel nanoferrites

Hasanain

2023

Mater. Res. Express

View full text Add to dashboard Cite

Nanoferrites play a pivotal role to resolve worldwide usage of electronic and microwave devices. Spinel ferrites have exceptional structural, morphological, and dielectric properties. The composition Zn0.5–xMg0.25+xCo0.25Cr1–xFe1+xO4 (ZMCCF) where x varies from 0-0.5 with the difference of 0.25 was synthesized via auto combustion (sol-gel) route. The structural, thermal, and dielectric characterizations were done to observe the responses of variation of x in designed nanoferrites. The designed nanoferrites with a variation of x experienced promising changes in structural, thermal, and dielectric responses. With the increase in frequency, the dielectric constant decrease which is the favorable trend of spinel ferrites based on Koop’s theory. This behavior is endorsed by the different cationic distributions in the spinel structure. The maximum value of the tangent loss at low frequencies reflects the application of these materials in medium frequency devices. Therefore planned spinel nanoferrites may beneficial for advanced electronics and microwave devices.

show abstract

SYNTHESIS, STRUCTURAL AND OPTICAL PROPERTIES OF Zn-SUBSTITUTED Co W-FERRITES BY COPRECIPITATION METHOD

Cited by 18 publications

References 12 publications

Tailoring the optical and magnetic properties of La-BaM hexaferrites by Ni substitution

Tailoring the optical and magnetic properties of La-BaM hexaferrites by Ni substitution

Tailoring of Structural, electrical, and dielectric properties of Mg-Mn-Bi nanoferrites with addition of Zn

Structural, dielectric, and thermal properties of Zn and Cr doped Mg- Co spinel nanoferrites

Contact Info

Product

Resources

About