Simultaneous normal – Anomalous dielectric dispersion and room temperature ferroelectricity in CBD perovskite BaTiO3 thin films

Khan, Sidra; Humera, Nudrat; Niaz, Saba; Riaz, Saira; Atiq, Shahid; Naseem, Shahzad

doi:10.1016/j.jmrt.2020.08.009

Cited by 23 publications

(7 citation statements)

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“…where δ 0 represents the operating frequency. After obtaining φ, the k factor can be calculated by the following equation [22]:…”

Section: Measuring Principle Of Ferromagnetic Resonance Line Width In...mentioning

confidence: 99%

Application of Gel Method Ba2TiSi2O8 Ferroelectric Thin Film in Contemporary Handicraft Three-Dimensional Fiber Art Works

2022

Advances in Materials Science and Engineering

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The concept of “fiber art” not only expresses a kind of art but also reflects the course of this art—the evolution from a material to an art. It also reflects the characteristics of this art form—art produced by materials. This article aims to explore the application analysis of the gel method Ba2TiSi2O8 ferroelectric thin film in contemporary handicraft three-dimensional fiber art works. This article first discusses the influence of ferroelectric domains on ferroelectric thin films and concludes that domains are the basis of various physical properties and applications of ferroelectric materials. By changing the types and quantities of domains, the performance of ferroelectric materials can be controlled. Then the measurement principle of the ferromagnetic resonance line width in the ferroelectric thin film is proposed, and the Ba2TiSi2O8 ferroelectric thin film is prepared by the gel method. Then the ferromagnetism and temperature stability of the Ba2TiSi2O8 ferroelectric film are discussed, and the contemporary handicraft three-dimensional fiber art works are analyzed based on the ferroelectric film. The classical methods to detect ferromagnetic permeability tensors mainly include non-resonance method, Faraday rotation method, resonance method, resonance perturbation method, and so on. The experimental results in this paper show that the polarization strength of the flexible film at high temperature is slightly reduced. As the temperature increases, the flexible film still has a good hysteresis loop, and the saturation polarization strength does not change much. It shows that the Ba2TiSi2O8 structured flexible film has good temperature stability at about 80°C, and the contemporary handicraft three-dimensional fiber art work based on ferroelectric film not only has a good economic mechanism but also has its flexibility and beauty increased by 80%.

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“…where δ 0 represents the operating frequency. After obtaining φ, the k factor can be calculated by the following equation [22]:…”

Section: Measuring Principle Of Ferromagnetic Resonance Line Width In...mentioning

confidence: 99%

Application of Gel Method Ba2TiSi2O8 Ferroelectric Thin Film in Contemporary Handicraft Three-Dimensional Fiber Art Works

2022

Advances in Materials Science and Engineering

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“…The average crystallite size D of the filler particles in the polymer matrix was computed using the Scherer formula. The average crystallite size of all predominant peaks was calculated as [ 17 ]:

where K is a constant and is called shape factor and its value for cubic crystallites is equal to 0.9 and β is called full width and half maxima (FWHM). An average “size–strain plot” (SSP) may be a better way to figure out the size–strain parameters of isotropic line broadening than other methods.…”

Section: Resultsmentioning

confidence: 99%

“…This indicates that theoretical prediction models (Equations (4) and (6)) for cell parameter prediction can be used for filler particles as well as polymer composite material. Dislocation density gives information about the defects in the material and is given by [ 17 ]:

where D is the crystallite size (SSP).…”

Section: Resultsmentioning

confidence: 99%

“…The optical band gap ( E g ) of polymer nanocomposites is a critical characteristic that defines the optoelectronic uses of these materials [ 15 , 16 ]. UV-visible (UV-Vis) absorption spectroscopy is commonly used to find the energy band gap of materials and it is predominantly useful for this purpose [ 17 , 18 ]. Due to the low scattering in solid films, it is straightforward to derive the E g values from their absorption spectra by determining their thickness.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Europium-Doped Barium Titanate/Polystyrene Polymer Nanocomposites Using Ultrasonication-Assisted Method: Structural and Optical Properties

et al. 2022

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In the current work, europium-doped barium titanate particles were used as filler material and polystyrene was used as a matrix to fabricate Ba1-3x/2EuxTiO3/PS polymer nanocomposites with x = 0, 0.005, 0.015 and 0.025. A solid-state reaction was used to synthesize filler particles and the solvent evaporation method was used to form polymer nanocomposites. The effects of ultrasonic treatment were also studied in the formation of nanocomposite materials. The quantitative and qualitative studies were conducted using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), and ultraviolet-visible (UV-Vis) characterization techniques. The XRD data and FTIR data confirm the incorporation of filler particles in the polymer matrix. FE-SEM data confirms that the particles are in the nanophase. The optical band gap was directly affected by the filler particles and it started to reduce as Eu concentration started to increase.

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“…There are many methods for obtaining BaTiO 3 ceramics, e.g., the free sintering method, the sol-gel method, or spark plasma sintering, which has been gaining attention in materials science research [8]. Barium titanate has been the most widely studied classical ferroelectric due to its excellent dielectric, ferroelectric, optical, piezoelectric, and other useful properties [9][10][11]. BaTiO 3 finds practical applications in classic capacitors, thermistors, and varistors [12][13][14][15], piezoelectric sensors, and piezoelectric transducers [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Impedance Spectroscopy of Fe and La-Doped BaTiO3 Ceramics

Adamczyk-Habrajska,

Wodecka-Dus,

Goryczka

et al. 2024

Crystals

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A wide range of the interesting properties of electroceramics Ba0.996La0.004Ti0.999O3 (BLT4) undoubtedly deserves differentiation and optimization. For this purpose, the corresponding donor oxide dope Fe2O3 was introduced in excess quantities into the base ceramics. In this way, an innovative ceramic material with the general formula of Ba0.996La0.004Ti1−yFeyO3 (BLTF), for y = 0.001, 0.002, 0.003, 0.004, has been produced. The crystal structure of BLTF ceramics was investigated using X-ray diffraction. The diffraction peaks in XRD confirm the formation of the tetragonal perovskite phase. The electrical properties of BLTF ceramics have been tested using impedance spectroscopy, in the frequency range of 20 Hz–2 MHz and the temperature range of 20–580 °C. To gain absolute certainty on the consistency of the measured data, the obtained impedance spectra were analyzed using the Kramers–Kronig method. The usage of an equivalent circuit, proposed by the authors, allowed grain and grain boundary resistivity to be obtained. Based on the diagram of the natural logarithm of the mentioned resistivity versus the reciprocal absolute temperature, the activation energies of the conductivity processes have been determined. The values of activation energies indicated that the admixture of iron introduced into the BLT4 ceramics played a crucial role in the conductivity of grains and intergranular borders.

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Simultaneous normal – Anomalous dielectric dispersion and room temperature ferroelectricity in CBD perovskite BaTiO3 thin films

Cited by 23 publications

References 56 publications

Application of Gel Method Ba2TiSi2O8 Ferroelectric Thin Film in Contemporary Handicraft Three-Dimensional Fiber Art Works

Application of Gel Method Ba2TiSi2O8 Ferroelectric Thin Film in Contemporary Handicraft Three-Dimensional Fiber Art Works

Fabrication of Europium-Doped Barium Titanate/Polystyrene Polymer Nanocomposites Using Ultrasonication-Assisted Method: Structural and Optical Properties

Impedance Spectroscopy of Fe and La-Doped BaTiO3 Ceramics

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