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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 1/2017

12.08.2016

Crystal structure and magnetism of BiFeO3 nanoparticles regulated by rare-earth Tb substitution

verfasst von: QiaoXia Xing, Zhonglin Han, Shifeng Zhao

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 1/2017

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Abstract

Tb-doped BiFeO3 nanoparticles were prepared using sol–gel method. The effect of Tb substitution on crystal structure and magnetism of BiFeO3 nanoparticles were investigated. It is shown that the crystal structure and magnetism of BiFeO3 nanoparticles are regulated by rare-earth Tb substitution. Particularly, the sizes of the particles are reduced to smaller than 100 nm after doping with Tb. The magnetization of Tb-doped BiFeO3 nanoparticles has been enhanced in magnitude, which is mainly attributed to the suppression of spin cycloid structure belonging to R3c phase fraction in the process of rhombohedral-to-orthorhombic structural phase transformations. At the meantime, the magnetic hysteresis loops show exchange bias towards negative axis. The exchange bias behaviors originate from the coupling interaction between antiferromagnetic core and ferromagnetic surface. The present work provides a route regulating the magnetization of BiFeO3 particles as well as further promoting its applications in multiferroic materials.
Vorheriger Artikel Enhanced photo-catalytic degradation of naphthol blue black on nano-structure MnCo2O4: charge separation of the photo-generated electron–hole pair
Nächster Artikel Mesoporous architecture of TiO2 microspheres via controlled template assisted route and their photoelectrochemical properties

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Metadaten
Titel
Crystal structure and magnetism of BiFeO3 nanoparticles regulated by rare-earth Tb substitution
verfasst von
QiaoXia Xing
Zhonglin Han
Shifeng Zhao
Publikationsdatum
12.08.2016
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 1/2017
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-016-5524-z

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