Structure, ferromagnetism and microwave absorption properties of la substituted BiFeO3 nanoparticles

Yong Li; Hui Jing Yang; Wei Guang Yang; Zhi Ling Hou; Jing Bo Li; Hai Bo Jin; Jie Yuan; Mao Sheng Cao

doi:10.1016/j.matlet.2013.08.061

Structure, ferromagnetism and microwave absorption properties of la substituted BiFeO₃ nanoparticles

Yong Li, Hui Jing Yang, Wei Guang Yang, Zhi Ling Hou, Jing Bo Li, Hai Bo Jin, Jie Yuan, Mao Sheng Cao^*

^*Corresponding author for this work

School of Material Science and Engineering

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

58 Citations (Scopus)

Abstract

La substituted BiFeO₃ nanoparticles were prepared by the sol-gel method. The effects of La on the structure, ferromagnetism and microwave absorpion properties of BiFeO₃ at room temperature are investigated systematically. With 20 mol% La substitution, BiFeO₃ undergoes a phase transformation from rhombohedral to pseudotetragonal structure, and its saturation magnetization enhances from 0.15 to 0.85 emu/g under the magnetic field of 20 kOe. The microwave absorption properties of BiFeO₃ with La substitution is obviously enhanced in the frequency range from 8.2 to 12.4 GHz due to the improvement of electromagnetic match, and the maximum reflection loss reaches up to 30 dB, almost triple that of BiFeO₃.

Original language	English
Pages (from-to)	130-133
Number of pages	4
Journal	Materials Letters
Volume	111
DOIs	https://doi.org/10.1016/j.matlet.2013.08.061
Publication status	Published - 2013

Keywords

BiFeO
Microwave absorption
Multiferroic
Nanoparticles
Sol-gel

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10.1016/j.matlet.2013.08.061

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title = "Structure, ferromagnetism and microwave absorption properties of la substituted BiFeO3 nanoparticles",

abstract = "La substituted BiFeO3 nanoparticles were prepared by the sol-gel method. The effects of La on the structure, ferromagnetism and microwave absorpion properties of BiFeO3 at room temperature are investigated systematically. With 20 mol% La substitution, BiFeO3 undergoes a phase transformation from rhombohedral to pseudotetragonal structure, and its saturation magnetization enhances from 0.15 to 0.85 emu/g under the magnetic field of 20 kOe. The microwave absorption properties of BiFeO3 with La substitution is obviously enhanced in the frequency range from 8.2 to 12.4 GHz due to the improvement of electromagnetic match, and the maximum reflection loss reaches up to 30 dB, almost triple that of BiFeO3.",

keywords = "BiFeO, Microwave absorption, Multiferroic, Nanoparticles, Sol-gel",

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T1 - Structure, ferromagnetism and microwave absorption properties of la substituted BiFeO3 nanoparticles

AU - Li, Yong

AU - Yang, Hui Jing

AU - Yang, Wei Guang

AU - Hou, Zhi Ling

AU - Li, Jing Bo

AU - Jin, Hai Bo

AU - Yuan, Jie

AU - Cao, Mao Sheng

PY - 2013

Y1 - 2013

N2 - La substituted BiFeO3 nanoparticles were prepared by the sol-gel method. The effects of La on the structure, ferromagnetism and microwave absorpion properties of BiFeO3 at room temperature are investigated systematically. With 20 mol% La substitution, BiFeO3 undergoes a phase transformation from rhombohedral to pseudotetragonal structure, and its saturation magnetization enhances from 0.15 to 0.85 emu/g under the magnetic field of 20 kOe. The microwave absorption properties of BiFeO3 with La substitution is obviously enhanced in the frequency range from 8.2 to 12.4 GHz due to the improvement of electromagnetic match, and the maximum reflection loss reaches up to 30 dB, almost triple that of BiFeO3.

AB - La substituted BiFeO3 nanoparticles were prepared by the sol-gel method. The effects of La on the structure, ferromagnetism and microwave absorpion properties of BiFeO3 at room temperature are investigated systematically. With 20 mol% La substitution, BiFeO3 undergoes a phase transformation from rhombohedral to pseudotetragonal structure, and its saturation magnetization enhances from 0.15 to 0.85 emu/g under the magnetic field of 20 kOe. The microwave absorption properties of BiFeO3 with La substitution is obviously enhanced in the frequency range from 8.2 to 12.4 GHz due to the improvement of electromagnetic match, and the maximum reflection loss reaches up to 30 dB, almost triple that of BiFeO3.

KW - BiFeO

KW - Microwave absorption

KW - Multiferroic

KW - Nanoparticles

KW - Sol-gel

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U2 - 10.1016/j.matlet.2013.08.061

DO - 10.1016/j.matlet.2013.08.061

M3 - Article

AN - SCOPUS:84883699667

SN - 0167-577X

VL - 111

SP - 130

EP - 133

JO - Materials Letters

JF - Materials Letters

ER -

Structure, ferromagnetism and microwave absorption properties of la substituted BiFeO₃ nanoparticles

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Keywords

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