We report here the synthesis of a self-grown 0–3 particulate multiferroic composite by controlled precipitation of the ferrimagnetic garnet phase using additive (MnO2) assisted sintering of a multi-cation ferroelectric system (Bi, Pb, Dy)(Fe, Ti)O3. The particulate multiferroic composite derived in this manner exhibits a favorable microstructure, wherein, although the volume fraction of the garnet phase is kept low (6%), which helps in retaining the electrical insulating character of the specimen, the number fraction of the garnet grains vis-à-vis the ferroelectric grains is ∼1:1. The composite shows a nearly ∼50% increase in saturation polarization at room temperature under a modest magnetic field of 1 T, suggesting a considerable improvement in ferroelectric domain switching due to the efficient strain transfer from the minority garnet grains to the majority piezoelectric grains.
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6 April 2020
Research Article|
April 10 2020
Magnetic enhancement of ferroelectric polarization in a particulate multiferroic composite derived in situ via additive assisted sintering of a pseudo ternary alloy system BiFeO3–PbTiO3–DyFeO3
Sujoy Saha;
Sujoy Saha
1
Department of Materials Engineering, Indian Institute of Science
, Bangalore 560012, India
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Ram Prakash Singh;
Ram Prakash Singh
1
Department of Materials Engineering, Indian Institute of Science
, Bangalore 560012, India
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Avinash Kumar;
Avinash Kumar
1
Department of Materials Engineering, Indian Institute of Science
, Bangalore 560012, India
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Arnab De;
Arnab De
1
Department of Materials Engineering, Indian Institute of Science
, Bangalore 560012, India
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Prafull Pandey;
Prafull Pandey
1
Department of Materials Engineering, Indian Institute of Science
, Bangalore 560012, India
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Bastola Narayan
;
Bastola Narayan
1
Department of Materials Engineering, Indian Institute of Science
, Bangalore 560012, India
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Himalay Basumatary;
Himalay Basumatary
2
Defence Metallurgical Research Laboratory
, Kanchanbagh, Hyderabad 500058, India
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Anatoliy Senyshyn
;
Anatoliy Senyshyn
3
Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München
, Lichtenbergestrasse 1, D-85747 Garching b. München, Germany
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Rajeev Ranjan
Rajeev Ranjan
a)
1
Department of Materials Engineering, Indian Institute of Science
, Bangalore 560012, India
a)Author to whom correspondence should be addressed: [email protected]
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a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 116, 142902 (2020)
Article history
Received:
February 06 2020
Accepted:
March 19 2020
Citation
Sujoy Saha, Ram Prakash Singh, Avinash Kumar, Arnab De, Prafull Pandey, Bastola Narayan, Himalay Basumatary, Anatoliy Senyshyn, Rajeev Ranjan; Magnetic enhancement of ferroelectric polarization in a particulate multiferroic composite derived in situ via additive assisted sintering of a pseudo ternary alloy system BiFeO3–PbTiO3–DyFeO3. Appl. Phys. Lett. 6 April 2020; 116 (14): 142902. https://doi.org/10.1063/5.0003822
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