Enhanced dielectric, ferroelectric, and ferromagnetic responses of BaZr0.2Ti0.8O3–Ni0.5Zn0.5Fe2O4 multiferroic ceramic composite

Haque, Jahidul; Munna, Ahsan Habib; Rahman, Sejuti; Rahman, Ma-ariz; Hossain, Nabid

doi:10.1016/j.rinma.2020.100148

Cited by 5 publications

(1 citation statement)

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“…This may be referred to the large ionic radius of Cd as compared to Zn and possibly due to the observed impurity α-Fe 2 O 3 phase that increased with increasing x [36]. The switch of ε values from negative to positive describes a change in samples' unit cell behavior from compression into expansion, as observed by D. Kumar et al [37] and M. Haque et al [38] in spinel their ferrite nanoparticles.…”

Section: ( ) and Williamson-hall Equationmentioning

confidence: 80%

Structural and magnetic analysis of Cd-Zn spinel ferrite nanoparticles

Badr¹,

Kudrevatykh²,

Hassan³

et al. 2023

Phys. Scr.

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Sol-gel auto-combustion synthesis technique was employed to synthesize Cd-Zn ferrite nanoparticles with composition Zn1-xCdxFe2O4, where 0.0≤ x≤ 1.0. The physical properties of prepared samples were inspected by using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR) and vibration sample magnetometer (VSM) techniques. XRD analysis confirmed the formation of Cd-Zn spinel nano-ferrites with an increase in experimental lattice constant from 8.37 Å to 8.74 Å for zinc and cadmium ferrite samples, respectively. Variation of tetrahedral and octahedral hopping lengths, crystallite size, microstrain and dislocation density with Cd-content has been investigated and elucidated. SEM micrographs showed agglomeration of nearly-spherical grains that increased in size with Cd-content increase. FTIR analysis confirmed the existence of the characteristic tetrahedral and octahedral stretching vibrations of metal ion and oxygen complex in the range 429-558 cm-1. VSM measurements revealed a tuning in coercivity to higher values and a decrease in saturation magnetization as Cd-content increased. The calculated cations distribution, bond lengths, bond angles and interionic distances between cations at tetrahedral and octahedral sites attribute the observed decrease in saturation magnetization to weak interaction between cations in the two sites.

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Section: ( ) and Williamson-hall Equationmentioning

confidence: 80%