Structural and Magnetic Properties of Cu2+ Substituted Co–Zn Ferrite Nanoparticles, Synthesized by Sol–Gel Combustion Method

Babu, K. Rajasekhar; Rao, Michaël; Rao, P. Srinivasa; Rao, K. Ram Mohan; Babu, B.; Babu, B. Rajesh

doi:10.1007/s10904-017-0499-7

Cited by 12 publications

(1 citation statement)

References 24 publications

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“…The Rietveld refined XRD patterns in figure 1(a) shows typical diffraction peaks (220), (311), ( 222), (400), (422), (511), and (440), which is in agreement with the ICDD no. 22-1086 (for Cobalt ferrite) and 89-1009 (for Zinc ferrite) [41,42]. There is no evidence of impurity diffraction peaks in Rietveld refined patterns for any samples that were prepared, confirming the materials' single-phase crystalline structure with Fd3m geometry and face-centered cubic (FCC) arrangement.…”

Section: Xrd Investigationmentioning

confidence: 76%

Silver and nickel modified cobalt-zinc nanostructured ferrites for potential applications

Kumari,

Himanshi,

Jasrotia

et al. 2023

Phys. Scr.

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In this analysis, silver and nickel modified cobalt-zinc nanostructured ferrites, with chemical compositions of Co0.5Zn0.5AgxNiyFe2-x-yO4 (x = 0.0, 0.01, 0.02, 0.03; y = 0.0, 0.02, 0.03, 0.04) were prepared employing sol–gel auto-combustion (SGAC). All samples were inspected for elementary, structural, microstructural, and magnetic traits. The Fd3m space group geometry with pure spinel phase for the produced nanoferrites was shown by Rietveld’s refined X-ray diffraction patterns. Using the Scherrer formula, X-ray diffraction indicated that samples attain a crystallite size (t) of 38-63 (± 0.01) nm. The field emission scanning electron microscopy revealed that grain growth was not uniform but rather agglomerated, of varying shapes and sizes. The vibrational stretching within the metal-oxygen at interstitial sites was confirmed by Fourier-transform infrared spectroscopy, which clearly indicates the creation of Co-Zn spinel nanoferrites. Furthermore, in all the produced samples, five active Raman vibrational modes (Eg, 3T2g, A1g) are present, and all of these are related to the cubic spinel structure. A vibrating sample magnetometer is utilized to examine the magnetic traits of produced magnetic samples, displaying soft magnetic behavior. The Co0.5Zn0.5AgxNiyFe2-x-yO4 (x = 0.00; y = 0.00) sample attains the maximum saturation magnetization (Ms = 64.94 (± 0.001) emu g−1), whereas the maximum coercivity (Hc = 217.33 ± 0.001 Oe) was attained by the Co0.5Zn0.5AgxNiyFe2-x-yO4 (x = 0.03; y = 0.04) sample, respectively. Therefore, due to the magnetic softness and excellent values of magnetic parameters of the integrated samples, it is possible to use them for potential applications such as recording media, switching, multi-layer chip indicators (MLCIs), and power applications.

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Section: Xrd Investigationmentioning

confidence: 76%

Silver and nickel modified cobalt-zinc nanostructured ferrites for potential applications

Kumari,

Himanshi,

Jasrotia

et al. 2023

Phys. Scr.

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Experimental comparison of structural, magnetic and elastic properties of M0.3Cu0.2Zn0.5Fe2O4 (M = Cu, Mn, Fe, Co, Ni, Mg) nanoparticles

Khedri

Gholizadeh

2019

Appl. Phys. A

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Facile Route for the Synthesis of Er Doped Nanoferrites: An Investigation on Structural, Magnetic, and Electrical Properties

Reddy

Rao

Babu

et al. 2023

J Inorg Organomet Polym

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In this work, Er 3+ doped Cobalt Nanoferrite particles CoEr x Fe 2−x O 4 (x = 0.0, 0.01, 0.03, 0.05) were synthesized using optimized citrate-gel auto-combustion method and analyzed for Humidity sensor applications. Preliminary X-ray diffraction and Raman spectroscopic studies and con rm the formation of single-phase spinel structure. Average crystallite sizes from Williamson-Hall method are in the range 28 nm to 32 nm, which are in close agreement with TEM data. Temperature dependent magnetization ZFC-FC curves shows above room temperature blocking temperature. Hysteresis loops obtained by vibrating sample magnetometry clearly enhances the magnetization of cobalt ferrite. Electrical resistance measurements in different relative humidity conditions (RH 10-95%) and frequencies were done using a High Frequency LCR Meter. Er doped Cobalt ferrite samples shows a decrease in electrical resistance and improved sensitivity compared to the pure ones. The variation of Resistance with respect to humidity conditions suggested that Er doped Cobalt ferrite nanoparticles are potentially suitable for resistive humidity sensor applications.

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Structural and Magnetic Properties of Cu2+ Substituted Co–Zn Ferrite Nanoparticles, Synthesized by Sol–Gel Combustion Method

Cited by 12 publications

References 24 publications

Silver and nickel modified cobalt-zinc nanostructured ferrites for potential applications

Silver and nickel modified cobalt-zinc nanostructured ferrites for potential applications

Experimental comparison of structural, magnetic and elastic properties of M0.3Cu0.2Zn0.5Fe2O4 (M = Cu, Mn, Fe, Co, Ni, Mg) nanoparticles

Facile Route for the Synthesis of Er Doped Nanoferrites: An Investigation on Structural, Magnetic, and Electrical Properties

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