Substitution-driven structural, optical and magnetic transformation of Mn, Zn doped BiFeO3

Yumin Han; Yuhui Ma; Chuye Quan; Ning Gao; Qiaoxia Zhang; Weiwei Mao; Jian Zhang; Jianping Yang; Xing'Ao Li; Wei Huang

doi:10.1016/j.ceramint.2014.10.065

Substitution-driven structural, optical and magnetic transformation of Mn, Zn doped BiFeO₃

Yumin Han, Yuhui Ma, Chuye Quan, Ning Gao, Qiaoxia Zhang, Weiwei Mao, Jian Zhang, Jianping Yang, Xing'Ao Li, Wei Huang

Nanjing University of Posts and Telecommunications

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

48 Scopus citations

Abstract

Mn, Zn doped and pure BiFeO₃ were prepared by sol-gel method. The 5% and 10% Zn-doped phase crystallites have a rhombohedral symmetry (R3c) structure. Doped with 5% Mn, BiFeO₃ contains both rhombohedral (R3c) and tetragonal phase (P4mm) while 10% Mn gives a rise to tetragonal phase (P4/mbm). Raman and Fourier Transformed Infrared spectra also confirmed the structure transformation. Compared with pure BiFeO₃, Mn-Zn doped samples present intense blue shift as shown in UV-Visible diffuse absorption together with the decreased direct optical band gap. The substitution of Mn ions for Fe enhances ferromagnetic properties while the Zn-doped ones show linear paramagnetism. Owing to the interactions between the ferromagnetic and antiferromagnetic microdomains, Mn and Zn co-doping results in a large remanent magnetization (Mr) of 0.045 emu/g.

Original language	English
Pages (from-to)	2476-2483
Number of pages	8
Journal	Ceramics International
Volume	41
Issue number	2
DOIs	https://doi.org/10.1016/j.ceramint.2014.10.065
State	Published - 1 Mar 2015
Externally published	Yes

Keywords

Ferrites
Magnetic properties
Optical properties
Sol-gel processes
X-ray methods

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10.1016/j.ceramint.2014.10.065

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title = "Substitution-driven structural, optical and magnetic transformation of Mn, Zn doped BiFeO3",

abstract = "Mn, Zn doped and pure BiFeO3 were prepared by sol-gel method. The 5% and 10% Zn-doped phase crystallites have a rhombohedral symmetry (R3c) structure. Doped with 5% Mn, BiFeO3 contains both rhombohedral (R3c) and tetragonal phase (P4mm) while 10% Mn gives a rise to tetragonal phase (P4/mbm). Raman and Fourier Transformed Infrared spectra also confirmed the structure transformation. Compared with pure BiFeO3, Mn-Zn doped samples present intense blue shift as shown in UV-Visible diffuse absorption together with the decreased direct optical band gap. The substitution of Mn ions for Fe enhances ferromagnetic properties while the Zn-doped ones show linear paramagnetism. Owing to the interactions between the ferromagnetic and antiferromagnetic microdomains, Mn and Zn co-doping results in a large remanent magnetization (Mr) of 0.045 emu/g.",

keywords = "Ferrites, Magnetic properties, Optical properties, Sol-gel processes, X-ray methods",

author = "Yumin Han and Yuhui Ma and Chuye Quan and Ning Gao and Qiaoxia Zhang and Weiwei Mao and Jian Zhang and Jianping Yang and Xing'Ao Li and Wei Huang",

year = "2015",

month = mar,

day = "1",

doi = "10.1016/j.ceramint.2014.10.065",

language = "英语",

volume = "41",

pages = "2476--2483",

journal = "Ceramics International",

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TY - JOUR

T1 - Substitution-driven structural, optical and magnetic transformation of Mn, Zn doped BiFeO3

AU - Han, Yumin

AU - Ma, Yuhui

AU - Quan, Chuye

AU - Gao, Ning

AU - Zhang, Qiaoxia

AU - Mao, Weiwei

AU - Zhang, Jian

AU - Yang, Jianping

AU - Li, Xing'Ao

AU - Huang, Wei

PY - 2015/3/1

Y1 - 2015/3/1

N2 - Mn, Zn doped and pure BiFeO3 were prepared by sol-gel method. The 5% and 10% Zn-doped phase crystallites have a rhombohedral symmetry (R3c) structure. Doped with 5% Mn, BiFeO3 contains both rhombohedral (R3c) and tetragonal phase (P4mm) while 10% Mn gives a rise to tetragonal phase (P4/mbm). Raman and Fourier Transformed Infrared spectra also confirmed the structure transformation. Compared with pure BiFeO3, Mn-Zn doped samples present intense blue shift as shown in UV-Visible diffuse absorption together with the decreased direct optical band gap. The substitution of Mn ions for Fe enhances ferromagnetic properties while the Zn-doped ones show linear paramagnetism. Owing to the interactions between the ferromagnetic and antiferromagnetic microdomains, Mn and Zn co-doping results in a large remanent magnetization (Mr) of 0.045 emu/g.

AB - Mn, Zn doped and pure BiFeO3 were prepared by sol-gel method. The 5% and 10% Zn-doped phase crystallites have a rhombohedral symmetry (R3c) structure. Doped with 5% Mn, BiFeO3 contains both rhombohedral (R3c) and tetragonal phase (P4mm) while 10% Mn gives a rise to tetragonal phase (P4/mbm). Raman and Fourier Transformed Infrared spectra also confirmed the structure transformation. Compared with pure BiFeO3, Mn-Zn doped samples present intense blue shift as shown in UV-Visible diffuse absorption together with the decreased direct optical band gap. The substitution of Mn ions for Fe enhances ferromagnetic properties while the Zn-doped ones show linear paramagnetism. Owing to the interactions between the ferromagnetic and antiferromagnetic microdomains, Mn and Zn co-doping results in a large remanent magnetization (Mr) of 0.045 emu/g.

KW - Ferrites

KW - Magnetic properties

KW - Optical properties

KW - Sol-gel processes

KW - X-ray methods

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U2 - 10.1016/j.ceramint.2014.10.065

DO - 10.1016/j.ceramint.2014.10.065

M3 - 文章

AN - SCOPUS:84919463829

SN - 0272-8842

VL - 41

SP - 2476

EP - 2483

JO - Ceramics International

JF - Ceramics International

IS - 2

ER -

Substitution-driven structural, optical and magnetic transformation of Mn, Zn doped BiFeO₃

Abstract

Keywords

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