Multiferroic properties of (Bi1-xPrx)(Fe 0.95Mn0.05)O3 thin films

Zheng Wen; Lu You; Xuan Shen; Xuefei Li; Di Wu; Junling Wang; Aidong Li

doi:10.1016/j.mseb.2011.05.031

Multiferroic properties of (Bi_1-xPr_x)(Fe _0.95Mn_0.05)O₃ thin films

Zheng Wen, Lu You, Xuan Shen, Xuefei Li, Di Wu, Junling Wang, Aidong Li

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

32 Citations (Scopus)

Abstract

Abstract: The effects of Pr substitution on the structures, magnetism and electrical properties of Bi(Fe_0.95Mn_0.05)O₃ films are investigated systematically. X-ray diffraction and Raman spectra results confirm that a phase transition from rhombohedral to tetragonal structure occurs at about 15% Pr substitution. The X-ray photoelectron spectroscopy reveals that Fe²⁺ in the films can be suppressed by Pr substitution. Enhanced ferromagnetism at room temperature is observed near the phase boundary composition. The increased remanent magnetization in the 15% Pr-substituted film can be understood by taking into account both the modification of the short-range canted G-type antiferromagnetic order at phase boundaries and the suppression of long-range incommensurate spin cycloid of BiFeO₃ due to Pr substitution. Meanwhile, large ferroelectric remanent polarization of un-doped BFO can be maintained when Pr concentration is less than 20%. With 15% Pr substitution, the film shows a large remanent polarization of 62 μC/cm² and a reduced coercive field of 217 kV/cm. These results demonstrate that doped BFO films with compositions near phase boundary may be promising candidates for multifunctional applications due to the simultaneous exhibition of enhanced ferromagnetism and superior ferroelectric properties. © 2011 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	990-995
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	176
Issue number	13
DOIs	https://doi.org/10.1016/j.mseb.2011.05.031
Publication status	Published - 15 Aug 2011
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Ferroelectrics
Magnetically ordered materials
Phase transitions

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@article{532fd4d7b4564bf398029ee8a2d165ec,

title = "Multiferroic properties of (Bi1-xPrx)(Fe 0.95Mn0.05)O3 thin films",

abstract = "Abstract: The effects of Pr substitution on the structures, magnetism and electrical properties of Bi(Fe0.95Mn0.05)O3 films are investigated systematically. X-ray diffraction and Raman spectra results confirm that a phase transition from rhombohedral to tetragonal structure occurs at about 15% Pr substitution. The X-ray photoelectron spectroscopy reveals that Fe2+ in the films can be suppressed by Pr substitution. Enhanced ferromagnetism at room temperature is observed near the phase boundary composition. The increased remanent magnetization in the 15% Pr-substituted film can be understood by taking into account both the modification of the short-range canted G-type antiferromagnetic order at phase boundaries and the suppression of long-range incommensurate spin cycloid of BiFeO3 due to Pr substitution. Meanwhile, large ferroelectric remanent polarization of un-doped BFO can be maintained when Pr concentration is less than 20%. With 15% Pr substitution, the film shows a large remanent polarization of 62 μC/cm2 and a reduced coercive field of 217 kV/cm. These results demonstrate that doped BFO films with compositions near phase boundary may be promising candidates for multifunctional applications due to the simultaneous exhibition of enhanced ferromagnetism and superior ferroelectric properties. {\textcopyright} 2011 Elsevier B.V. All rights reserved.",

keywords = "Ferroelectrics, Magnetically ordered materials, Phase transitions",

author = "Zheng Wen and Lu You and Xuan Shen and Xuefei Li and Di Wu and Junling Wang and Aidong Li",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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doi = "10.1016/j.mseb.2011.05.031",

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TY - JOUR

T1 - Multiferroic properties of (Bi1-xPrx)(Fe 0.95Mn0.05)O3 thin films

AU - Wen, Zheng

AU - You, Lu

AU - Shen, Xuan

AU - Li, Xuefei

AU - Wu, Di

AU - Wang, Junling

AU - Li, Aidong

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2011/8/15

Y1 - 2011/8/15

N2 - Abstract: The effects of Pr substitution on the structures, magnetism and electrical properties of Bi(Fe0.95Mn0.05)O3 films are investigated systematically. X-ray diffraction and Raman spectra results confirm that a phase transition from rhombohedral to tetragonal structure occurs at about 15% Pr substitution. The X-ray photoelectron spectroscopy reveals that Fe2+ in the films can be suppressed by Pr substitution. Enhanced ferromagnetism at room temperature is observed near the phase boundary composition. The increased remanent magnetization in the 15% Pr-substituted film can be understood by taking into account both the modification of the short-range canted G-type antiferromagnetic order at phase boundaries and the suppression of long-range incommensurate spin cycloid of BiFeO3 due to Pr substitution. Meanwhile, large ferroelectric remanent polarization of un-doped BFO can be maintained when Pr concentration is less than 20%. With 15% Pr substitution, the film shows a large remanent polarization of 62 μC/cm2 and a reduced coercive field of 217 kV/cm. These results demonstrate that doped BFO films with compositions near phase boundary may be promising candidates for multifunctional applications due to the simultaneous exhibition of enhanced ferromagnetism and superior ferroelectric properties. © 2011 Elsevier B.V. All rights reserved.

AB - Abstract: The effects of Pr substitution on the structures, magnetism and electrical properties of Bi(Fe0.95Mn0.05)O3 films are investigated systematically. X-ray diffraction and Raman spectra results confirm that a phase transition from rhombohedral to tetragonal structure occurs at about 15% Pr substitution. The X-ray photoelectron spectroscopy reveals that Fe2+ in the films can be suppressed by Pr substitution. Enhanced ferromagnetism at room temperature is observed near the phase boundary composition. The increased remanent magnetization in the 15% Pr-substituted film can be understood by taking into account both the modification of the short-range canted G-type antiferromagnetic order at phase boundaries and the suppression of long-range incommensurate spin cycloid of BiFeO3 due to Pr substitution. Meanwhile, large ferroelectric remanent polarization of un-doped BFO can be maintained when Pr concentration is less than 20%. With 15% Pr substitution, the film shows a large remanent polarization of 62 μC/cm2 and a reduced coercive field of 217 kV/cm. These results demonstrate that doped BFO films with compositions near phase boundary may be promising candidates for multifunctional applications due to the simultaneous exhibition of enhanced ferromagnetism and superior ferroelectric properties. © 2011 Elsevier B.V. All rights reserved.

KW - Ferroelectrics

KW - Magnetically ordered materials

KW - Phase transitions

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U2 - 10.1016/j.mseb.2011.05.031

DO - 10.1016/j.mseb.2011.05.031

M3 - RGC 21 - Publication in refereed journal

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EP - 995

JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

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