Effect of lattice strain on structural, magnetic and dielectric properties of sol–gel synthesized nanocrystalline Ce3+ substituted nickel ferrite

Influence of Ca substitution on structural, magnetic and dielectric properties of Ba3Co2-xCaxFe24O41(where x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0), prepared by Sol-Gel auto-combustion method, has been investigated in present studies. The obtained powder was sintered at 950 oC for 4 hrs. in the static air atmosphere. Structural analysis of Ca-doped Ba3Co2-xCaxFe24O41powders revealed pure Z-type hexaferrite phase at low temperature. The frequency dependent dielectric constant (Єʹ) and magnetic properties such as remanent magnetization (Mr), saturation magnetization (Ms) and coercivity (Hc) were studied. It is observed that coercivity increased gradually with increase in calcium content. The real dielectric constant (Єʹ) and dielectric loss tangent (tan δ) were studied in the frequency range of 20Hz to 2MHz. The dielectric parameters for all samples show normal dielectric behavior as observed in hexaferrites. Contents of Paper

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Magnetic and dielectric properties of Eu-doped BiFeO3 nanoparticles by acetic acid-assisted sol-gel method

Journal of Applied Physics ◽

10.1063/1.3662178 ◽

2011 ◽

Vol 110 (10) ◽

pp. 103905 ◽

Cited By ~ 57

Author(s):

Kaushik Chakrabarti ◽

Kajari Das ◽

Babusona Sarkar ◽

S. K. De

Keyword(s):

Acetic Acid ◽

Dielectric Properties ◽

Sol Gel ◽

Gel Method ◽

Sol Gel Method ◽

Bifeo3 Nanoparticles ◽

Magnetic And Dielectric Properties

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Magnetic and dielectric properties of MgxCo1-xFe2O4 ferrites prepared by the sol-gel method

Physica B Condensed Matter ◽

10.1016/j.physb.2018.05.030 ◽

2018 ◽

Vol 545 ◽

pp. 4-11 ◽

Cited By ~ 13

Author(s):

Li Sun ◽

Ru Zhang ◽

Qing Ni ◽

Ensi Cao ◽

Wentao Hao ◽

...

Keyword(s):

Dielectric Properties ◽

Sol Gel ◽

Gel Method ◽

Sol Gel Method ◽

Magnetic And Dielectric Properties

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Size dependent morphology, magnetic and dielectric properties of BiFeO3 nanoparticles

MRS Advances ◽

10.1557/adv.2019.167 ◽

2019 ◽

Vol 4 (28-29) ◽

pp. 1659-1665 ◽

Cited By ~ 1

Author(s):

Nidhi Sheoran ◽

Monika Saini ◽

Ashok Kumar ◽

Vinod Kumar ◽

Tanuj Kumar ◽

...

Keyword(s):

Dielectric Properties ◽

Phase Formation ◽

Rural Areas ◽

Annealing Temperature ◽

Sol Gel ◽

Antiferromagnetic Order ◽

Ferromagnetic Behavior ◽

Potential Candidate ◽

Auto Combustion ◽

Magnetic And Dielectric Properties

AbstractNano-sized BiFeO3 were synthesized by sol-gel auto combustion method and report the effect of different annealing temperature (400 °C, 500 °C, 600 °C) on phase formation, morphology, magnetic and dielectric properties of synthesized bismuth ferrite (BiFeO3) nanoparticles. The phase formation of BFO nanoparticles were confirmed by X-ray diffraction pattern. Further, significant increment in particle size with increasing annealing temperature was estimated by field emission electron microscopy (FESEM). Magnetization curve showed the soft ferromagnetic behavior of the samples annealed at 400 OC and 500 OC that was explained on the basis of disturbance of spiral modulated long range antiferromagnetic order of bulk BFO. Dielectric response revealed decrease in dielectric constant with increasing annealing temperature. BFO is a room-temperature multiferroic material so it is potential candidate for various applications viz. Water waste treatment, gas sensors and photovoltaic cells in rural areas.

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