Enhancement in electrical and magnetic properties of (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+-Modified BiFeO3-BaTiO3 ceramics

Dan Xu; Taolin Yu; Wenjie Zhao; Wenping Cao; Weili Li; Weidong Fei

doi:10.1016/j.ceramint.2021.05.111

Enhancement in electrical and magnetic properties of (Li_0.5Ga_0.5)²⁺ and (Li_0.5Er_0.5)²⁺-Modified BiFeO₃-BaTiO₃ ceramics

Dan Xu^*
, Taolin Yu
, Wenjie Zhao^*
, Wenping Cao
, Weili Li
, Weidong Fei

^*Corresponding author for this work

Harbin University of Science and Technology
Harbin University of Commerce
Harbin Institute of Technology

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

10 Scopus citations

Abstract

Effects of (Li_0.5Ga_0.5)²⁺ and (Li_0.5Er_0.5)²⁺ doping on the phase structure, electrical, and magnetic properties of 0.75BiFeO₃-0.25BaTiO₃ (BFO-BT) ceramics were investigated and analyzed. X-ray diffraction measurements suggested a rhombohedral distorted perovskite structure and no structural transformation with the increasing doping content. Rietveld refinement results revealed that (Li_0.5Ga_0.5)²⁺ ions were more susceptible to replace the B-sites and (Li_0.5Er_0.5)²⁺ ions tended to substitute the A-sites. A significant improvement in the dielectric loss, ferroelectricity, and magnetization was observed for both (Li_0.5Ga_0.5)²⁺ and (Li_0.5Er_0.5)²⁺-modified BFO–BT ceramics without the addition of MnO₂ compared to undoped ceramic samples. Remnant magnetization (M_r) of 0.35 emu/g was reached for LG6. The enhanced magnetic properties were related to the suppressed cycloidal spin structure, the presences of the local lattice disorder and the magnetic impurities induced by the (Li_0.5Ga_0.5)²⁺ and (Li_0.5Er_0.5)²⁺ substitution.

Original language	English
Pages (from-to)	24020-24030
Number of pages	11
Journal	Ceramics International
Volume	47
Issue number	17
DOIs	https://doi.org/10.1016/j.ceramint.2021.05.111
State	Published - 1 Sep 2021
Externally published	Yes

Keywords

BiFeO-BaTiO
Electrical properties
Magnetic properties
Rietveld refinement

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10.1016/j.ceramint.2021.05.111

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@article{68c6c48a63024cf9a78207b19eedf293,

title = "Enhancement in electrical and magnetic properties of (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+-Modified BiFeO3-BaTiO3 ceramics",

abstract = "Effects of (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+ doping on the phase structure, electrical, and magnetic properties of 0.75BiFeO3-0.25BaTiO3 (BFO-BT) ceramics were investigated and analyzed. X-ray diffraction measurements suggested a rhombohedral distorted perovskite structure and no structural transformation with the increasing doping content. Rietveld refinement results revealed that (Li0.5Ga0.5)2+ ions were more susceptible to replace the B-sites and (Li0.5Er0.5)2+ ions tended to substitute the A-sites. A significant improvement in the dielectric loss, ferroelectricity, and magnetization was observed for both (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+-modified BFO–BT ceramics without the addition of MnO2 compared to undoped ceramic samples. Remnant magnetization (Mr) of 0.35 emu/g was reached for LG6. The enhanced magnetic properties were related to the suppressed cycloidal spin structure, the presences of the local lattice disorder and the magnetic impurities induced by the (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+ substitution.",

keywords = "BiFeO-BaTiO, Electrical properties, Magnetic properties, Rietveld refinement",

author = "Dan Xu and Taolin Yu and Wenjie Zhao and Wenping Cao and Weili Li and Weidong Fei",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd and Techna Group S.r.l.",

year = "2021",

month = sep,

day = "1",

doi = "10.1016/j.ceramint.2021.05.111",

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TY - JOUR

T1 - Enhancement in electrical and magnetic properties of (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+-Modified BiFeO3-BaTiO3 ceramics

AU - Xu, Dan

AU - Yu, Taolin

AU - Zhao, Wenjie

AU - Cao, Wenping

AU - Li, Weili

AU - Fei, Weidong

PY - 2021/9/1

Y1 - 2021/9/1

N2 - Effects of (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+ doping on the phase structure, electrical, and magnetic properties of 0.75BiFeO3-0.25BaTiO3 (BFO-BT) ceramics were investigated and analyzed. X-ray diffraction measurements suggested a rhombohedral distorted perovskite structure and no structural transformation with the increasing doping content. Rietveld refinement results revealed that (Li0.5Ga0.5)2+ ions were more susceptible to replace the B-sites and (Li0.5Er0.5)2+ ions tended to substitute the A-sites. A significant improvement in the dielectric loss, ferroelectricity, and magnetization was observed for both (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+-modified BFO–BT ceramics without the addition of MnO2 compared to undoped ceramic samples. Remnant magnetization (Mr) of 0.35 emu/g was reached for LG6. The enhanced magnetic properties were related to the suppressed cycloidal spin structure, the presences of the local lattice disorder and the magnetic impurities induced by the (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+ substitution.

AB - Effects of (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+ doping on the phase structure, electrical, and magnetic properties of 0.75BiFeO3-0.25BaTiO3 (BFO-BT) ceramics were investigated and analyzed. X-ray diffraction measurements suggested a rhombohedral distorted perovskite structure and no structural transformation with the increasing doping content. Rietveld refinement results revealed that (Li0.5Ga0.5)2+ ions were more susceptible to replace the B-sites and (Li0.5Er0.5)2+ ions tended to substitute the A-sites. A significant improvement in the dielectric loss, ferroelectricity, and magnetization was observed for both (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+-modified BFO–BT ceramics without the addition of MnO2 compared to undoped ceramic samples. Remnant magnetization (Mr) of 0.35 emu/g was reached for LG6. The enhanced magnetic properties were related to the suppressed cycloidal spin structure, the presences of the local lattice disorder and the magnetic impurities induced by the (Li0.5Ga0.5)2+ and (Li0.5Er0.5)2+ substitution.

KW - BiFeO-BaTiO

KW - Electrical properties

KW - Magnetic properties

KW - Rietveld refinement

UR - https://www.scopus.com/pages/publications/85106652827

U2 - 10.1016/j.ceramint.2021.05.111

DO - 10.1016/j.ceramint.2021.05.111

M3 - 文章

AN - SCOPUS:85106652827

SN - 0272-8842

VL - 47

SP - 24020

EP - 24030

JO - Ceramics International

JF - Ceramics International

IS - 17

ER -

Enhancement in electrical and magnetic properties of (Li_0.5Ga_0.5)²⁺ and (Li_0.5Er_0.5)²⁺-Modified BiFeO₃-BaTiO₃ ceramics

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