Structural, electrical and magnetic properties of Bi(Ni0.45Ti0.45Fe0.10)O3

Kumar, Nitin; Shukla, Alok; Behera, C.; Choudhary, R. N. P.

doi:10.1016/j.jallcom.2016.07.009

Cited by 44 publications

(10 citation statements)

References 58 publications

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“…At low frequency region, a decrease in Z′ values is observed with temperature. This behavior represents the existence of a negative temperature coefficient of resistance (NTCR) in BiSiO nanofibers [21][22][23] . It is also observed that all spectrums merged into a single spectra at 24 .…”

Section: Resultsmentioning

confidence: 99%

Study of electric conduction mechanisms in bismuth silicate nanofibers

Batool

Imran

Rasool

et al. 2020

Sci Rep

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This work represents the nature of conduction mechanism in bismuth silicate (BiSiO) nanofibers as a function of temperature and frequency. Scanning electron micrographs and X-rays diffraction patterns exhibited the formation of cubic phases of Bi 4 (Sio 4 ) 3 and Bi 12 Sio 20 nanofibers respectively with an average diameter of ~200 nm. Temperature dependent (300 K-400 K) electrical characterization of fibers was carried out in frequency range of ~20 Hz-2 MHz. The complex impedance analysis showed contribution from bulk and intergranular parts of nanofibers in conduction. Moreover, analysis of the Cole-Cole plot confirmed the space charge dependent behavior of BiSiO nanofibers. Two types of relaxation phenomena were observed through Modulus analysis. In ac conductivity curve, step like feature of plateau and dispersive regions were described by Maxwell-Wagner effect while the dc part obeyed the Arrhenius law. However, frequency dependent ac conductivity revealed the presence of conduction mechanism in diverse regions that was ascribed to large polaron tunneling model. Detailed analysis of complex Impedance and ac conductivity measurement showed negative temperature coefficient of resistance for the BiSiO nanofibers. Current-voltage (IV) characteristics represented ohmic conduction; followed by space charge limited current conduction at intermediate voltages. Results from both ac and dc measurements were in good agreement with each other.

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Section: Resultsmentioning

confidence: 99%

Study of electric conduction mechanisms in bismuth silicate nanofibers

Batool

Imran

Rasool

et al. 2020

Sci Rep

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“…Especially, a small measured resistance value of the sample also include the probe resistance and contact resistance. And the four-lead method can make the current through the voltmete [8]. In addition, it has a higher degree of accuracy and can be degrees with the actual voltage and current of the sample itself.…”

Section: Measurement Methods and Principle Of Transport Propertymentioning

confidence: 99%

“…Titration with the EDTA standard solution, which is from purple to bright yellow, means the end of the determination of Bi , we add 1 drop of the xylenol orange indicator. And then we add 25% hexamethylene tetramine into the solution to stabilize the purple, and then over 5m [8]. And then the solution pH is about 4 to 5, then EDTA titration to the solution from purple to bright yellow is used as the end of the line.…”

Section: Znmentioning

confidence: 99%

“…The most common method is the powder method, which is used as much as possible. In this paper, the computer software can be used to record the sample at each angle above the diffraction intensity of the value, which is according to the value for obtaining the diffraction map [8]. Since we can only change the incident ray of the grazing angle for the operating equipment relative comparison, and the polycrystalline samples are easier to obtain, so the method is the most widely used powder method.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of Zinc - Bismuth Complex Oxide and Experimental Analysis of Its Magnetic and Electrical Characteristics

Weng¹,

Zhang²

2017

Proceedings of the 2017 2nd International Conference on Materials Science, Machinery and Energy Engineering (MSMEE 2017)

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Abstract. The effects of reaction material ratio and feed order on the composition of the product are investigated by the reaction of zinc sulfate, bismuth nitrate and sodium hydroxide as raw materials in the ultrasonic system. The product is identified as 2 5 8Bi Zn O by X-ray fluorescence and chemical titration, and the product can be characterized by TEM, SEM and TG-DTA. In this paper, the basic principle and experimental method of X -ray diffractometer are also introduced for the analysis of the sample structure in details. Finally, we expound the principle, application range and related parameters of the physical property measurement system (PPMS) of the experimental instrument for measuring the magneto and electric properties of the Zinc -Bismuth Complex Oxide samples.

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“…The sharp and narrow X-ray diffraction peaks indicate the proper crystalline nature as well as the development of a pure phase material. However, few peaks which have a very small intensities corresponds to the Bi25FeO40 and Bi2Fe4O9 crystal system [21] (shown as * symbol in the figure) and such a small impurity is a common problem in bismuth-based materials [22].…”

Section: Characterization Of Materialsmentioning

confidence: 99%

Structural, Electrical and Ferroelectric Properties of Lead-free Bi(Fe0.85dy0.15)o3 Electroceramic Compound

Thansanga

Shukla

Kumar

et al. 2021

Preprint

Self Cite

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This paper mainly reports detailed studies of structural, dielectric, impedance and ferroelectric properties of Bi(Fe0.85Dy0.15)O3 (termed as BFDO15), fabricated via solid state reaction (SSR) method. Analysis of X-ray diffraction (XRD) data confirm the crystal symmetry changes from rhombohedral to orthorhombic symmetry. The scanning electron micrograph collected through field emission scanning electron microscopy (FE-SEM) shows a regular distribution of grains over the sample surface. The elemental composition of the sample was examined by using energy dispersive X-ray micro-analysis (EDXMA) and this confirms the existence of constituent elements of the sample. The electrical measurement was carried out using a computer-controlled phase sensitive multimeter (PSM) in a frequency range of 1 kHz - 1000 kHz and temperature range of 25 ºC – 500 ºC. Study of dielectric properties shows high dielectric permittivity and small value of dielectric loss in the sample. The frequency dependent impedance and electrical modulus analysis reveals the presence of a semiconducting nature and non-Debye type relaxation process. Analysis of ac-conductivity with respect to frequency obeys the universal Jonscher’s power law. The electric polarization study shows enhancement in ferroelectric property of the material. Hence, based on the significant enhancement found in the structural, electrical and ferroelectric properties of BFDO15 material, it could be a promising candidate for modern device applications.

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Structural, electrical and magnetic properties of Bi(Ni0.45Ti0.45Fe0.10)O3

Cited by 44 publications

References 58 publications

Study of electric conduction mechanisms in bismuth silicate nanofibers

Study of electric conduction mechanisms in bismuth silicate nanofibers

Synthesis of Zinc - Bismuth Complex Oxide and Experimental Analysis of Its Magnetic and Electrical Characteristics

Structural, Electrical and Ferroelectric Properties of Lead-free Bi(Fe0.85dy0.15)o3 Electroceramic Compound

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