Effects of (Sm, Mn and Ni) co-doping on structural, optical and magnetic properties of BiFeO3 thin films fabricated by a sol-gel technique

Lu Yu; Hongmei Deng; Wenliang Zhou; Qiao Zhang; Pingxiong Yang; Junhao Chu

doi:10.1016/j.matlet.2016.02.004

Effects of (Sm, Mn and Ni) co-doping on structural, optical and magnetic properties of BiFeO₃ thin films fabricated by a sol-gel technique

Lu Yu, Hongmei Deng, Wenliang Zhou, Qiao Zhang, Pingxiong Yang, Junhao Chu

School of Physics and Electronic Science

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

43 Scopus citations

Abstract

Bi_0.9Sm_0.1FeO₃ (BSF), Bi_0.9Sm_0.1Fe_0.95Mn_0.05O₃ (BSFM) and Bi_0.9Sm_0.1Fe_0.9Mn_0.05Ni_0.05O₃ (BSFMN) thin films were grown on the quartz substrates by a sol-gel technique, respectively. Structural characterizations and microstructural analysis show that all the films exhibit polycrystalline perovskite structures with dense and smooth microstructures. The most intense diffraction peak (110) shifts toward lower diffraction angles, which is associated with lattice strain estimated by Williamson-Hall analysis model. Moreover, optical absorption spectra indicate that the co-doping of Sm, Mn and Ni has an effect on the energy band structure. The band gap of the films decreases from 2.61 eV (BSF) to 2.46 eV (BSFMN). Furthermore, the BSFMN film exhibits a maximum saturated magnetization compared with BSF and BSFM films, which mainly stems from the local ferromagnetic spin configuration.

Original language	English
Pages (from-to)	85-88
Number of pages	4
Journal	Materials Letters
Volume	170
DOIs	https://doi.org/10.1016/j.matlet.2016.02.004
State	Published - 1 May 2016

Keywords

BiFeO
Ferroelectrics
Optical and magnetic properties
Sol-gel preparation
Thin films

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10.1016/j.matlet.2016.02.004

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@article{47550613fa0f4db4ab64f859e203ea2a,

title = "Effects of (Sm, Mn and Ni) co-doping on structural, optical and magnetic properties of BiFeO3 thin films fabricated by a sol-gel technique",

abstract = "Bi0.9Sm0.1FeO3 (BSF), Bi0.9Sm0.1Fe0.95Mn0.05O3 (BSFM) and Bi0.9Sm0.1Fe0.9Mn0.05Ni0.05O3 (BSFMN) thin films were grown on the quartz substrates by a sol-gel technique, respectively. Structural characterizations and microstructural analysis show that all the films exhibit polycrystalline perovskite structures with dense and smooth microstructures. The most intense diffraction peak (110) shifts toward lower diffraction angles, which is associated with lattice strain estimated by Williamson-Hall analysis model. Moreover, optical absorption spectra indicate that the co-doping of Sm, Mn and Ni has an effect on the energy band structure. The band gap of the films decreases from 2.61 eV (BSF) to 2.46 eV (BSFMN). Furthermore, the BSFMN film exhibits a maximum saturated magnetization compared with BSF and BSFM films, which mainly stems from the local ferromagnetic spin configuration.",

keywords = "BiFeO, Ferroelectrics, Optical and magnetic properties, Sol-gel preparation, Thin films",

author = "Lu Yu and Hongmei Deng and Wenliang Zhou and Qiao Zhang and Pingxiong Yang and Junhao Chu",

year = "2016",

month = may,

day = "1",

doi = "10.1016/j.matlet.2016.02.004",

language = "英语",

volume = "170",

pages = "85--88",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Effects of (Sm, Mn and Ni) co-doping on structural, optical and magnetic properties of BiFeO3 thin films fabricated by a sol-gel technique

AU - Yu, Lu

AU - Deng, Hongmei

AU - Zhou, Wenliang

AU - Zhang, Qiao

AU - Yang, Pingxiong

AU - Chu, Junhao

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Bi0.9Sm0.1FeO3 (BSF), Bi0.9Sm0.1Fe0.95Mn0.05O3 (BSFM) and Bi0.9Sm0.1Fe0.9Mn0.05Ni0.05O3 (BSFMN) thin films were grown on the quartz substrates by a sol-gel technique, respectively. Structural characterizations and microstructural analysis show that all the films exhibit polycrystalline perovskite structures with dense and smooth microstructures. The most intense diffraction peak (110) shifts toward lower diffraction angles, which is associated with lattice strain estimated by Williamson-Hall analysis model. Moreover, optical absorption spectra indicate that the co-doping of Sm, Mn and Ni has an effect on the energy band structure. The band gap of the films decreases from 2.61 eV (BSF) to 2.46 eV (BSFMN). Furthermore, the BSFMN film exhibits a maximum saturated magnetization compared with BSF and BSFM films, which mainly stems from the local ferromagnetic spin configuration.

AB - Bi0.9Sm0.1FeO3 (BSF), Bi0.9Sm0.1Fe0.95Mn0.05O3 (BSFM) and Bi0.9Sm0.1Fe0.9Mn0.05Ni0.05O3 (BSFMN) thin films were grown on the quartz substrates by a sol-gel technique, respectively. Structural characterizations and microstructural analysis show that all the films exhibit polycrystalline perovskite structures with dense and smooth microstructures. The most intense diffraction peak (110) shifts toward lower diffraction angles, which is associated with lattice strain estimated by Williamson-Hall analysis model. Moreover, optical absorption spectra indicate that the co-doping of Sm, Mn and Ni has an effect on the energy band structure. The band gap of the films decreases from 2.61 eV (BSF) to 2.46 eV (BSFMN). Furthermore, the BSFMN film exhibits a maximum saturated magnetization compared with BSF and BSFM films, which mainly stems from the local ferromagnetic spin configuration.

KW - BiFeO

KW - Ferroelectrics

KW - Optical and magnetic properties

KW - Sol-gel preparation

KW - Thin films

UR - https://www.scopus.com/pages/publications/84957800085

U2 - 10.1016/j.matlet.2016.02.004

DO - 10.1016/j.matlet.2016.02.004

M3 - 文章

AN - SCOPUS:84957800085

SN - 0167-577X

VL - 170

SP - 85

EP - 88

JO - Materials Letters

JF - Materials Letters

ER -

Effects of (Sm, Mn and Ni) co-doping on structural, optical and magnetic properties of BiFeO₃ thin films fabricated by a sol-gel technique

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Keywords

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