Dielectric properties of BT-BT and BF-BT composites

Balčiu̅nas, Sergejus; Ivanov, M. V.; Watanabe, Miki; Matsumoto, Shingo; Ueno, S.; Fujii, Ichiro; Banys, J.; Wada, Satoshi

doi:10.1080/00150193.2018.1470830

Cited by 2 publications

(3 citation statements)

References 19 publications

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“…Figure shows the permittivity determined by temperature and frequency. The obvious relaxor behavior may be attributed to the small random field domains. , …”

Section: Bto–bfomentioning

confidence: 99%

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A Review of a Good Binary Ferroelectric Ceramic: BaTiO₃–BiFeO₃

Meng

Tang

et al. 2021

ACS Appl. Electron. Mater.

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Barium titanate (BaTiO3) and Bismuth ferrite (BiFeO3) have been investigated for many years. Both of them have good electrical properties in the application of industries such as flexible displays, actuators, transducers, flexible memory, multilayer ceramic capacitors, etc. Moreover, BiFeO3 is a room temperature multiferroic material that adds a halo to it. Although there are some shortcomings compared with some properties of lead-based ceramics, environmental friendly materials will be the future trend. The solid solution of BaTiO3 and BiFeO3 exactly meets this requirement. There are many reports related to it, but there are few systemic articles focused on it. So, this review recalls the progress of binary ferroelectric material: BaTiO3–BiFeO3 ceramic, especially in the field of ferroelectric, piezoelectric, energy-storage properties. Furthermore, the preparation approaches to functional ceramics are also illustrated here. Finally, we deliver a summary of this material.

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“…Figure shows the permittivity determined by temperature and frequency. The obvious relaxor behavior may be attributed to the small random field domains. , …”

Section: Bto–bfomentioning

confidence: 99%

“…(c and d) Real and imaginary part of BTO–BFO composites (Areas marked as A and B refer to relaxations accordingly: domain motion and acoustic resonance). Reprinted with the permission of ref . Copyright © 2019 Taylor & Francis.…”

Section: Bto–bfomentioning

confidence: 99%

A Review of a Good Binary Ferroelectric Ceramic: BaTiO₃–BiFeO₃

Meng

Tang

et al. 2021

ACS Appl. Electron. Mater.

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“…The studies of (1−x) BF-x BT disclosed the frequency dispersion, relaxor type behavior, diffused phase transition, and a strong presence of magneto-electric (ME) coupling in the BF-BT system [13][14][15]. Balčiūnas et al [16] reported the anomalous dielectric behavior of BF-BT with three-phase transitions. Frequency dependence of double relaxation was crucially observed in this study.…”

Section: Introductionmentioning

confidence: 99%

Structural, dielectric and electrical characteristics of manganese modified (Bi_0.5Ba_0.25Sr_0.25) (Ti_0.5Fe_0.5)O₃ relaxor

Auromun¹,

Choudhary²

2021

Phys. Scr.

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In this communication, detailed studies of the structural, microstructural, dielectric, and electrical properties of polycrystalline materials, (Bi0.5Ba0.25Sr0.25) (Ti0.5Fe0.5)O3 and (Bi0.5Ba0.25Sr0.25) (Ti0.25Mn0.25Fe0.5)O3, synthesized by using a high–temperature solid-state-reaction method, have been reported. X-ray structural and scanning electron micrograph studies exhibit phase pure tetragonal system and surface morphology (size and distribution of grains and grain boundaries) of the samples respectively. Analysis of the temperature and frequency dependence of dielectric and electrical (impedance, modulus, and conductivity) data reveals the ferroelectric relaxor behavior, relaxation mechanism, and semiconductor (negative temperature coefficient of resistance) properties of the bulk BFBST and Mn modified BFBST electro-ceramics. The relaxation time and activation energy (Ea) were calculated from the above data. The characteristics of Mn modified BFBST have been compared to that of it’s parent (BFBST) compound. The different inherent conduction mechanisms, such as Ohmic, hopping, space charge limited (SCLC) have been analyzed. The bulk- and interface-limited conduction processes were evidently found in the materials by the Poole–Frenkel (PF) and Schottky (SEmen modified BFBST have been compared to that of its parent (BFBST) compound) emission fitting of the J ∼ E characteristic data. The leakage data of BFBST-Mn (Mn modified Mn) quantified the average energy gap (Eg) in the range of 0.83–0. 87 eV for different applied voltages and in a wide range of temperature (25 °C–300 °C). With the increase in voltage, Eg decreases. This work suggests that Mn-substitution (Mn4+) at B (Ti4+) site keeping the stoichiometry undisturbed enhances structural, dielectric response (higher dielectric constant) and reduce the leakage behavior especially at low temperature and high-frequency range.

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Dielectric properties of BT-BT and BF-BT composites

Cited by 2 publications

References 19 publications

A Review of a Good Binary Ferroelectric Ceramic: BaTiO₃–BiFeO₃

A Review of a Good Binary Ferroelectric Ceramic: BaTiO₃–BiFeO₃

Structural, dielectric and electrical characteristics of manganese modified (Bi_0.5Ba_0.25Sr_0.25) (Ti_0.5Fe_0.5)O₃ relaxor

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Dielectric properties of BT-BT and BF-BT composites

Cited by 2 publications

References 19 publications

A Review of a Good Binary Ferroelectric Ceramic: BaTiO3–BiFeO3

A Review of a Good Binary Ferroelectric Ceramic: BaTiO3–BiFeO3

Structural, dielectric and electrical characteristics of manganese modified (Bi0.5Ba0.25Sr0.25) (Ti0.5Fe0.5)O3 relaxor

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Product

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A Review of a Good Binary Ferroelectric Ceramic: BaTiO₃–BiFeO₃

A Review of a Good Binary Ferroelectric Ceramic: BaTiO₃–BiFeO₃

Structural, dielectric and electrical characteristics of manganese modified (Bi_0.5Ba_0.25Sr_0.25) (Ti_0.5Fe_0.5)O₃ relaxor