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Structural, electrical, and multiferroic characteristics of lead-free multiferroic: Bi(Co(0.5)Ti(0.5))O(3)–BiFeO(3) solid solution

A solid solution of bismuth cobalt titanate [Bi(Co(0.5)Ti(0.5))O(3)] and bismuth ferrite (BiFeO(3)) with a composition Bi(Co(0.40)Ti(0.40)Fe(0.20))O(3) (abbreviated as BCTF80/20) was synthesized via a cost effective solid-state technique. Phase identification and basic structural symmetry of the sam...

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Autores principales: Kumar, Nitin, Shukla, Alok, Kumar, Nripesh, Choudhary, R. N. P., Kumar, Ajeet
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9089311/
https://www.ncbi.nlm.nih.gov/pubmed/35558949
http://dx.doi.org/10.1039/c8ra02306a
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author Kumar, Nitin
Shukla, Alok
Kumar, Nripesh
Choudhary, R. N. P.
Kumar, Ajeet
author_facet Kumar, Nitin
Shukla, Alok
Kumar, Nripesh
Choudhary, R. N. P.
Kumar, Ajeet
author_sort Kumar, Nitin
collection PubMed
description A solid solution of bismuth cobalt titanate [Bi(Co(0.5)Ti(0.5))O(3)] and bismuth ferrite (BiFeO(3)) with a composition Bi(Co(0.40)Ti(0.40)Fe(0.20))O(3) (abbreviated as BCTF80/20) was synthesized via a cost effective solid-state technique. Phase identification and basic structural symmetry of the samples were determined by analyzing powder X-ray diffraction data. Field emission scanning electron micrograph (FE-SEM) and energy dispersive X-ray (EDX) spectra were analyzed to evaluate the micro-structural aspects (shape and size, distribution of grains) as well as a quantitative evaluation of the sample. The average crystallite (particle) and grain size were found to be ∼30 nm and ∼1–2 micron, respectively. The electrical parameters (dielectric constant, tangent loss, impedance, modulus, and conductivity) of as-synthesized material were obtained in a temperature range of 300 to 773 K and frequency range of 1 kHz and 1000 kHz. The strong correlation of microstructure (i.e., grains, grain boundary, etc.) and electrical parameters of this material were observed. The frequency dependence of electrical impedance and modulus exhibited a deviation from an ideal Debye-like relaxation process. The dependence of dielectric relaxation mechanism on frequency and temperature is discussed in detail. The field dependent polarization (P–E hysteresis loop) of BCTF80/20 exhibited an enhanced value of remnant polarization as compared to that of BiFeO(3) (referred as BFO). At room temperature (300 K), the magnetic hysteresis loop measurements also showed a significant improvement in the magnetization of BCTF80/20. Thus, based on these enhanced values of remnant polarization and magnetic parameters, we can assume that BCTF80/20 may be considered as a promising candidate for some new generations of electronic devices.
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spelling pubmed-90893112022-05-11 Structural, electrical, and multiferroic characteristics of lead-free multiferroic: Bi(Co(0.5)Ti(0.5))O(3)–BiFeO(3) solid solution Kumar, Nitin Shukla, Alok Kumar, Nripesh Choudhary, R. N. P. Kumar, Ajeet RSC Adv Chemistry A solid solution of bismuth cobalt titanate [Bi(Co(0.5)Ti(0.5))O(3)] and bismuth ferrite (BiFeO(3)) with a composition Bi(Co(0.40)Ti(0.40)Fe(0.20))O(3) (abbreviated as BCTF80/20) was synthesized via a cost effective solid-state technique. Phase identification and basic structural symmetry of the samples were determined by analyzing powder X-ray diffraction data. Field emission scanning electron micrograph (FE-SEM) and energy dispersive X-ray (EDX) spectra were analyzed to evaluate the micro-structural aspects (shape and size, distribution of grains) as well as a quantitative evaluation of the sample. The average crystallite (particle) and grain size were found to be ∼30 nm and ∼1–2 micron, respectively. The electrical parameters (dielectric constant, tangent loss, impedance, modulus, and conductivity) of as-synthesized material were obtained in a temperature range of 300 to 773 K and frequency range of 1 kHz and 1000 kHz. The strong correlation of microstructure (i.e., grains, grain boundary, etc.) and electrical parameters of this material were observed. The frequency dependence of electrical impedance and modulus exhibited a deviation from an ideal Debye-like relaxation process. The dependence of dielectric relaxation mechanism on frequency and temperature is discussed in detail. The field dependent polarization (P–E hysteresis loop) of BCTF80/20 exhibited an enhanced value of remnant polarization as compared to that of BiFeO(3) (referred as BFO). At room temperature (300 K), the magnetic hysteresis loop measurements also showed a significant improvement in the magnetization of BCTF80/20. Thus, based on these enhanced values of remnant polarization and magnetic parameters, we can assume that BCTF80/20 may be considered as a promising candidate for some new generations of electronic devices. The Royal Society of Chemistry 2018-11-01 /pmc/articles/PMC9089311/ /pubmed/35558949 http://dx.doi.org/10.1039/c8ra02306a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Kumar, Nitin
Shukla, Alok
Kumar, Nripesh
Choudhary, R. N. P.
Kumar, Ajeet
Structural, electrical, and multiferroic characteristics of lead-free multiferroic: Bi(Co(0.5)Ti(0.5))O(3)–BiFeO(3) solid solution
title Structural, electrical, and multiferroic characteristics of lead-free multiferroic: Bi(Co(0.5)Ti(0.5))O(3)–BiFeO(3) solid solution
title_full Structural, electrical, and multiferroic characteristics of lead-free multiferroic: Bi(Co(0.5)Ti(0.5))O(3)–BiFeO(3) solid solution
title_fullStr Structural, electrical, and multiferroic characteristics of lead-free multiferroic: Bi(Co(0.5)Ti(0.5))O(3)–BiFeO(3) solid solution
title_full_unstemmed Structural, electrical, and multiferroic characteristics of lead-free multiferroic: Bi(Co(0.5)Ti(0.5))O(3)–BiFeO(3) solid solution
title_short Structural, electrical, and multiferroic characteristics of lead-free multiferroic: Bi(Co(0.5)Ti(0.5))O(3)–BiFeO(3) solid solution
title_sort structural, electrical, and multiferroic characteristics of lead-free multiferroic: bi(co(0.5)ti(0.5))o(3)–bifeo(3) solid solution
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9089311/
https://www.ncbi.nlm.nih.gov/pubmed/35558949
http://dx.doi.org/10.1039/c8ra02306a
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