Sol-gel synthesis of Nd-doped BiFeO3 multiferroic and its characterization

Dawei Wang; Meili Wang; Fengbin Liu; Yan Cui; Quanliang Zhao; Huajun Sun; Haibo Jin; Maosheng Cao

doi:10.1016/j.ceramint.2015.03.100

Sol-gel synthesis of Nd-doped BiFeO₃ multiferroic and its characterization

Dawei Wang^*, Meili Wang, Fengbin Liu, Yan Cui, Quanliang Zhao, Huajun Sun, Haibo Jin, Maosheng Cao

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

120 Citations (Scopus)

Abstract

Neodymium doped bismuth ferrite (BiFeO₃, BFO) nanoparticles were successfully synthesized by a facile sol-gel route. The influence of annealing temperature, time, Bi content and solvent on the crystal structure of BFO was studied. Results indicated that the optimum processing condition of BFO products was 550-600 °C/1.5 h with excess 3-6% Bi and ethylene glycol as solvent. On the other hand, Nd³⁺ ion was introduced into the BFO system and the effect of Nd³⁺ concentration on the structure, magnetic and dielectric properties of BFO were investigated. It was found that the magnetization of BFO was enhanced significantly with Nd³⁺ substitution, being attributed to the suppression of the spiral cycloidal magnetic structure led by the crystal structure transition. Furthermore, with increasing Nd³⁺ content, the dielectric constant was found to decrease while the dielectric loss was enhanced, which was mainly due to the hoping conduction mechanism with the reduction of oxygen vacancies.

Original language	English
Pages (from-to)	8768-8772
Number of pages	5
Journal	Ceramics International
Volume	41
Issue number	7
DOIs	https://doi.org/10.1016/j.ceramint.2015.03.100
Publication status	Published - 1 Aug 2015

Keywords

BiFeO
C. Dielectric properties
Ferromagnetism
Multiferroic
Sol-gel

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10.1016/j.ceramint.2015.03.100

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title = "Sol-gel synthesis of Nd-doped BiFeO3 multiferroic and its characterization",

abstract = "Neodymium doped bismuth ferrite (BiFeO3, BFO) nanoparticles were successfully synthesized by a facile sol-gel route. The influence of annealing temperature, time, Bi content and solvent on the crystal structure of BFO was studied. Results indicated that the optimum processing condition of BFO products was 550-600 °C/1.5 h with excess 3-6% Bi and ethylene glycol as solvent. On the other hand, Nd3+ ion was introduced into the BFO system and the effect of Nd3+ concentration on the structure, magnetic and dielectric properties of BFO were investigated. It was found that the magnetization of BFO was enhanced significantly with Nd3+ substitution, being attributed to the suppression of the spiral cycloidal magnetic structure led by the crystal structure transition. Furthermore, with increasing Nd3+ content, the dielectric constant was found to decrease while the dielectric loss was enhanced, which was mainly due to the hoping conduction mechanism with the reduction of oxygen vacancies.",

keywords = "BiFeO, C. Dielectric properties, Ferromagnetism, Multiferroic, Sol-gel",

author = "Dawei Wang and Meili Wang and Fengbin Liu and Yan Cui and Quanliang Zhao and Huajun Sun and Haibo Jin and Maosheng Cao",

year = "2015",

month = aug,

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doi = "10.1016/j.ceramint.2015.03.100",

language = "English",

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T1 - Sol-gel synthesis of Nd-doped BiFeO3 multiferroic and its characterization

AU - Wang, Dawei

AU - Wang, Meili

AU - Liu, Fengbin

AU - Cui, Yan

AU - Zhao, Quanliang

AU - Sun, Huajun

AU - Jin, Haibo

AU - Cao, Maosheng

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Neodymium doped bismuth ferrite (BiFeO3, BFO) nanoparticles were successfully synthesized by a facile sol-gel route. The influence of annealing temperature, time, Bi content and solvent on the crystal structure of BFO was studied. Results indicated that the optimum processing condition of BFO products was 550-600 °C/1.5 h with excess 3-6% Bi and ethylene glycol as solvent. On the other hand, Nd3+ ion was introduced into the BFO system and the effect of Nd3+ concentration on the structure, magnetic and dielectric properties of BFO were investigated. It was found that the magnetization of BFO was enhanced significantly with Nd3+ substitution, being attributed to the suppression of the spiral cycloidal magnetic structure led by the crystal structure transition. Furthermore, with increasing Nd3+ content, the dielectric constant was found to decrease while the dielectric loss was enhanced, which was mainly due to the hoping conduction mechanism with the reduction of oxygen vacancies.

AB - Neodymium doped bismuth ferrite (BiFeO3, BFO) nanoparticles were successfully synthesized by a facile sol-gel route. The influence of annealing temperature, time, Bi content and solvent on the crystal structure of BFO was studied. Results indicated that the optimum processing condition of BFO products was 550-600 °C/1.5 h with excess 3-6% Bi and ethylene glycol as solvent. On the other hand, Nd3+ ion was introduced into the BFO system and the effect of Nd3+ concentration on the structure, magnetic and dielectric properties of BFO were investigated. It was found that the magnetization of BFO was enhanced significantly with Nd3+ substitution, being attributed to the suppression of the spiral cycloidal magnetic structure led by the crystal structure transition. Furthermore, with increasing Nd3+ content, the dielectric constant was found to decrease while the dielectric loss was enhanced, which was mainly due to the hoping conduction mechanism with the reduction of oxygen vacancies.

KW - BiFeO

KW - C. Dielectric properties

KW - Ferromagnetism

KW - Multiferroic

KW - Sol-gel

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U2 - 10.1016/j.ceramint.2015.03.100

DO - 10.1016/j.ceramint.2015.03.100

M3 - Article

AN - SCOPUS:84929285508

SN - 0272-8842

VL - 41

SP - 8768

EP - 8772

JO - Ceramics International

JF - Ceramics International

IS - 7

ER -

Sol-gel synthesis of Nd-doped BiFeO₃ multiferroic and its characterization

Abstract

Keywords

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