Enhancement in magnetic properties of Ba-doped BiFeO 3 ceramics by mechanical activation

Layek, Samar; Verma, H. C.; Garg, Ashish

doi:10.1016/j.jallcom.2015.08.057

Cited by 29 publications

(2 citation statements)

References 40 publications

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“…The phase purity of the obtained BFO product clearly demonstrates the advantages of our suggested synthetic approach, since the fabrication of single-phase BFO remains a challenging task due to the formation of non-perovskite secondary phases. Many authors reported previously on the formation of significant amounts of neighboring phases, such as Bi 2 Fe 4 O 9 or Bi 25 FeO 39 [ 30 , 31 , 32 , 33 ]. Taking into account the results of XRD analysis, BFO sample annealed at 650 °C was chosen for further investigation.…”

Section: Resultsmentioning

confidence: 99%

A Facile Synthesis and Characterization of Highly Crystalline Submicro-Sized BiFeO3

et al. 2020

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In this study, a highly crystalline bismuth ferrite (BFO) powder was synthesized using a novel, very simple, and cost-effective synthetic approach. It was demonstrated that the optimal annealing temperature for the preparation of highly-pure BFO is 650 °C. At lower or higher temperatures, the formation of neighboring crystal phases was observed. The thermal behavior of BFO precursor gel was investigated by thermogravimetric and differential scanning calorimetry (TG-DSC) measurements. X-ray diffraction (XRD) analysis and Mössbauer spectroscopy were employed for the investigation of structural properties. Scanning electron microscopy (SEM) was used to evaluate morphological features of the synthesized materials. The obtained powders were also characterized by magnetization measurements, which showed antiferromagnetic behavior of BFO powders.

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Section: Resultsmentioning

confidence: 99%

A Facile Synthesis and Characterization of Highly Crystalline Submicro-Sized BiFeO3

et al. 2020

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“…Godara et al prepared Ba and Co co-doped ceramics by solid-state reaction method which is associated with the structural phase transition and antiparallel spin structure of the BFO compound [10]. Layek et al obtained Ba doped BFO ceramics by mechanical activation process for the enhancement of magnetic properties [11]. Das et al prepared Ba substituted BFO by chemical synthesis route and observed that Ba dopant can enhancement the magnetization [12].…”

Section: Introductionmentioning

confidence: 99%

Influence of barium doping on structural and magnetic properties of bismuth ferrite thin films via spray pyrolysis method

Pani¹,

Sundaray²,

Sahoo³

et al. 2020

J. Phys. D: Appl. Phys.

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Single-phase Bi (1-x) Ba x FeO 3 (0.00 ⩽ x ⩽ 0.20) thin films are successfully deposited on glass substrates by using a spray pyrolysis method. Rietveld analysis of x-ray diffraction patterns confirms that the films are crystallized in a distorted rhombohedral perovskite structure with an R3c space group. No substantial changes in the structure are observed in the samples within the studied doping concentration. The energy dispersive spectroscopy pattern and morphology of the thin films are examined with field emission scanning electron microscopy. Raman modes confirmed slight structural distortions with the increase in Ba concentration. X-ray photoelectron spectroscopy of the thin films shows the effect of Ba 2+ in the formation of Fe 2+ defects and oxygen vacancies. The room temperature magnetic characterizations of the thin films are measured by using a vibrating sample magnetometer within a range of 10 kOe magnetic field. The values of saturation magnetization and the remnant magnetization are increased with an increase in Ba concentration as compared to the pure bismuth ferrite thin film. The optimum value of field-dependent saturation magnetization (2.4069 emu gm −1 ) and field-dependent remnant magnetization (0.6279 emu gm −1 ) are observed for Ba substituted bismuth ferrite samples with x = 0.10.

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Structural, ferroelectric and magnetic studies of Bi(1−x)Gd(x)Fe(1−y)Co(y)O3 thin films

Kuang

Yang

Wei

et al. 2017

J Mater Sci: Mater Electron

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Enhancement in magnetic properties of Ba-doped BiFeO 3 ceramics by mechanical activation

Cited by 29 publications

References 40 publications

A Facile Synthesis and Characterization of Highly Crystalline Submicro-Sized BiFeO3

A Facile Synthesis and Characterization of Highly Crystalline Submicro-Sized BiFeO3

Influence of barium doping on structural and magnetic properties of bismuth ferrite thin films via spray pyrolysis method

Structural, ferroelectric and magnetic studies of Bi(1−x)Gd(x)Fe(1−y)Co(y)O3 thin films

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