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Fe doping effect on the structural, ferroelectric and magnetic properties of polycrystalline BaTi1−xFexO3 ceramics.

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Title: Fe doping effect on the structural, ferroelectric and magnetic properties of polycrystalline BaTi1−xFexO3 ceramics.
Authors: Zhou, Lisa1 (AUTHOR), Zhang, Yuanyuan1 (AUTHOR) yyzhang@ee.ecnu.edu.cn, Li, Sheng1 (AUTHOR), Lian, Qin1 (AUTHOR), Yang, Jing1 (AUTHOR), Bai, Wei1 (AUTHOR), Tang, Xiaodong1,2 (AUTHOR) xdtang@sist.ecnu.edu.cn
Source: Journal of Materials Science: Materials in Electronics. Sep2020, Vol. 31 Issue 17, p14487-14493. 7p.
Subjects: Magnetic properties, Domain walls (String models), Ceramics, Magnetism, Ferroelectricity, Dielectric properties, Ferroelectric ceramics
Abstract: BaTi1−xFexO3 (x = 0–0.08) ceramics were prepared by conventional solid-state reaction. The Fe doping effect on the structure, electrical and magnetic properties was analyzed. The Fe substitution would reduce the degree of tetragonality and ferroelectricity. The hexagonal phase began to emerge and increased after x = 0.04 by the X-ray diffraction. Meanwhile, ferroelectricity is diminished due to an increase of the non-ferroelectric hexagonal and pinning of domain wall motioned by oxygen vacancies with the increasing Fe substitution. It is found that the nonlinear change of magnetic properties with the increasing Fe concentration. The critical role of the valence state of Fe ions and the accompanied oxygen vacancies on the magnitude of magnetic properties is discussed. Our investigations suggest that the competition of Fe4+–O2−–Fe4+, Fe3+–O2−–Fe4+ and Fe3+–O2−–Fe3+ interaction are coexisted, and the Fe4+–O2−–Fe4+ super-exchange interaction is responsible for the larger magnetism at x = 0.04. From the analyze of XPS spectra, the higher content of Fe4+ and lower oxygen vacancies at x = 0.04 verify that Fe4+–O2−–Fe4+ super-exchange interaction is the origin of larger magnetism. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Fe doping effect on the structural, ferroelectric and magnetic properties of polycrystalline BaTi<subscript>1−x</subscript>Fe<subscript>x</subscript>O<subscript>3</subscript> ceramics.
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  Data: <searchLink fieldCode="AR" term="%22Zhou%2C+Lisa%22">Zhou, Lisa</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Yuanyuan%22">Zhang, Yuanyuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yyzhang@ee.ecnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Sheng%22">Li, Sheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lian%2C+Qin%22">Lian, Qin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Jing%22">Yang, Jing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bai%2C+Wei%22">Bai, Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tang%2C+Xiaodong%22">Tang, Xiaodong</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> xdtang@sist.ecnu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%3A+Materials+in+Electronics%22">Journal of Materials Science: Materials in Electronics</searchLink>. Sep2020, Vol. 31 Issue 17, p14487-14493. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Magnetic+properties%22">Magnetic properties</searchLink><br /><searchLink fieldCode="DE" term="%22Domain+walls+%28String+models%29%22">Domain walls (String models)</searchLink><br /><searchLink fieldCode="DE" term="%22Ceramics%22">Ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetism%22">Magnetism</searchLink><br /><searchLink fieldCode="DE" term="%22Ferroelectricity%22">Ferroelectricity</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+properties%22">Dielectric properties</searchLink><br /><searchLink fieldCode="DE" term="%22Ferroelectric+ceramics%22">Ferroelectric ceramics</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: BaTi1−xFexO3 (x = 0–0.08) ceramics were prepared by conventional solid-state reaction. The Fe doping effect on the structure, electrical and magnetic properties was analyzed. The Fe substitution would reduce the degree of tetragonality and ferroelectricity. The hexagonal phase began to emerge and increased after x = 0.04 by the X-ray diffraction. Meanwhile, ferroelectricity is diminished due to an increase of the non-ferroelectric hexagonal and pinning of domain wall motioned by oxygen vacancies with the increasing Fe substitution. It is found that the nonlinear change of magnetic properties with the increasing Fe concentration. The critical role of the valence state of Fe ions and the accompanied oxygen vacancies on the magnitude of magnetic properties is discussed. Our investigations suggest that the competition of Fe4+–O2−–Fe4+, Fe3+–O2−–Fe4+ and Fe3+–O2−–Fe3+ interaction are coexisted, and the Fe4+–O2−–Fe4+ super-exchange interaction is responsible for the larger magnetism at x = 0.04. From the analyze of XPS spectra, the higher content of Fe4+ and lower oxygen vacancies at x = 0.04 verify that Fe4+–O2−–Fe4+ super-exchange interaction is the origin of larger magnetism. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10854-020-04008-z
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        StartPage: 14487
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        Type: general
      – SubjectFull: Domain walls (String models)
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      – SubjectFull: Ceramics
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      – SubjectFull: Magnetism
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      – SubjectFull: Ferroelectricity
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      – SubjectFull: Ferroelectric ceramics
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    Titles:
      – TitleFull: Fe doping effect on the structural, ferroelectric and magnetic properties of polycrystalline BaTi1−xFexO3 ceramics.
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            NameFull: Zhou, Lisa
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            NameFull: Zhang, Yuanyuan
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            – D: 01
              M: 09
              Text: Sep2020
              Type: published
              Y: 2020
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            – TitleFull: Journal of Materials Science: Materials in Electronics
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