Studies on morphological and magnetic properties of Co1−xCuxFe2O4 nanoparticles synthesized via thermal decomposition approach

Tomar, Dimpal; Jeevanandam, P.

doi:10.1007/s10854-021-07543-5

Cited by 3 publications

(3 citation statements)

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“…The saturation magnetization of Co x Cu 1−x Fe 2 O 4 nanoparticles reduces owing to the substitution of Cu 2+ ions for Co 2+ ions in octahedral sites, except x = 0.5. It can be argued that for x = 0.5 content, substitution of Cu 2+ ions for Co 2+ ions emerge in tetrahedral sites together with the octahedral sites, and therefore magnetic contribution arising from tetrahedral sites starts to decreasing, and the saturation magnetization value increases [42]. All these results agree with the SEM results.…”

Section: Magnetic Propertiessupporting

confidence: 84%

“…For optimizing CoFe 2 O 4 properties, the researchers have followed different ways such as synthesis methods like combustion [29,30], co-precipitation [31,32], microwave combustion [33], sol-gel [34][35][36] and microemulsion [37], laser ablation [38] and doping with various elements into the matrix [39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, the substitution of Cu (II) ions for Co (II) ones in Co-spinel nanoparticles can reveal modifications in chemical [52] and physical properties [42].…”

Section: Introductionmentioning

confidence: 99%

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Detailed studies on structural, morphological, optical, magnetic and mossbauer properties of Cu-substituted cobalt ferrite nanoparticles

Ergin¹,

İçi̇n²,

Güngüneş³

et al. 2023

Phys. Scr.

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In this research, the effect on the morphology, structure, optic, magnetic and Mossbauer features of Cu2+ doping in Co1-xCuxFe2O4 (x=0.0-1.0) nanoparticles fabricated using the sol-gel auto-combustion reaction method were investigated. The mainly pure phase structure of Co-spinel was observed in X-ray diffraction (XRD) patterns. The sizes of crystal were observed in between 28.77–36.25 nm. The fundamental vibrational bands of the nanoparticles have been found at 426 and 602 cm-1 wavelengths via the Fourier transform infrared (FT-IR) spectrum. The most of Co2+ ions are located at the A site and that substitution by Cu+2 ions at the octahedral site for x=0.0, 0.25, and 0.50. for x=0.75 content, the Mössbauer results show that some Cu2+ ions are present in both A and B sites. Magnetization measurements at room temperature show that Cu2+ substitution into Co-ferrite significantly changes the magnetic quantities such as coercivity field (Hc), remnant (Mr) and saturation magnetization (Ms). Magnetic hysteresis curves obtained at room temperature show well-known S-shaped features for all nanoparticles with Ms values of 51.5-64.4 emu/g, Mr values of 31-36 emu/g and Hc values of 429.5-1447.8 Oe.

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Section: Magnetic Propertiessupporting

confidence: 84%