Structural, spectroscopic, and dielectric characterizations of Mn-doped 0.67BiFeO3-0.33BaTiO3 multiferroic ceramics

Handle URI:
http://hdl.handle.net/10754/550836
Title:
Structural, spectroscopic, and dielectric characterizations of Mn-doped 0.67BiFeO3-0.33BaTiO3 multiferroic ceramics
Authors:
Hang, Qiming; Zhou, Wenke; Zhu, Xinhua; Zhu, Jianmin; Liu, Zhiguo; Al-Kassab, Talaat
Abstract:
0.67BiFeO3-0.33BaTiO3 multiferroic ceramics doped with x mol% MnO2 (x = 2–10) were synthesized by solid-state reaction. The formation of a perovskite phase with rhombohedral symmetry was confirmed by X-ray diffraction (XRD). The average grain sizes were reduced from 0.80 μm to 0.50 μm as increasing the Mn-doped levels. Single crystalline nature of the grains was revealed by high-resolution transmission electron microscopy (HRTEM) images and electron diffraction patterns. Polar nano-sized ferroelectric domains with an average size of 9 nm randomly distributed in the ceramic samples were revealed by TEM images. Ferroelectric domain lamellae (71° ferroelectric domains) with an average width of 5 nm were also observed. Vibrational modes were examined by Raman spectra, where only four Raman peaks at 272 cm−1 (E-4 mode), 496 cm−1 (A 1-4 mode), 639 cm−1, and 1338 cm−1 were observed. The blue shifts in the E-4 and A 1-4 Raman mode frequencies were interpreted by a spring oscillator model. The dieletric constants of the present ceramics as a function of the Mn-doped levels exhibited a V-typed curve. They were in the range of 350–700 measured at 103 Hz, and the corresponding dielectric losses were in range of 0.43–0.96, approaching to 0.09 at 106 Hz.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Structural, spectroscopic, and dielectric characterizations of Mn-doped 0.67BiFeO3-0.33BaTiO3 multiferroic ceramics 2013, 2 (3):252 Journal of Advanced Ceramics
Publisher:
Springer Science + Business Media
Journal:
Journal of Advanced Ceramics
Issue Date:
7-Sep-2013
DOI:
10.1007/s40145-013-0068-7
Type:
Article
ISSN:
2226-4108; 2227-8508
Additional Links:
http://link.springer.com/10.1007/s40145-013-0068-7
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorHang, Qimingen
dc.contributor.authorZhou, Wenkeen
dc.contributor.authorZhu, Xinhuaen
dc.contributor.authorZhu, Jianminen
dc.contributor.authorLiu, Zhiguoen
dc.contributor.authorAl-Kassab, Talaaten
dc.date.accessioned2015-04-28T11:56:52Zen
dc.date.available2015-04-28T11:56:52Zen
dc.date.issued2013-09-07en
dc.identifier.citationStructural, spectroscopic, and dielectric characterizations of Mn-doped 0.67BiFeO3-0.33BaTiO3 multiferroic ceramics 2013, 2 (3):252 Journal of Advanced Ceramicsen
dc.identifier.issn2226-4108en
dc.identifier.issn2227-8508en
dc.identifier.doi10.1007/s40145-013-0068-7en
dc.identifier.urihttp://hdl.handle.net/10754/550836en
dc.description.abstract0.67BiFeO3-0.33BaTiO3 multiferroic ceramics doped with x mol% MnO2 (x = 2–10) were synthesized by solid-state reaction. The formation of a perovskite phase with rhombohedral symmetry was confirmed by X-ray diffraction (XRD). The average grain sizes were reduced from 0.80 μm to 0.50 μm as increasing the Mn-doped levels. Single crystalline nature of the grains was revealed by high-resolution transmission electron microscopy (HRTEM) images and electron diffraction patterns. Polar nano-sized ferroelectric domains with an average size of 9 nm randomly distributed in the ceramic samples were revealed by TEM images. Ferroelectric domain lamellae (71° ferroelectric domains) with an average width of 5 nm were also observed. Vibrational modes were examined by Raman spectra, where only four Raman peaks at 272 cm−1 (E-4 mode), 496 cm−1 (A 1-4 mode), 639 cm−1, and 1338 cm−1 were observed. The blue shifts in the E-4 and A 1-4 Raman mode frequencies were interpreted by a spring oscillator model. The dieletric constants of the present ceramics as a function of the Mn-doped levels exhibited a V-typed curve. They were in the range of 350–700 measured at 103 Hz, and the corresponding dielectric losses were in range of 0.43–0.96, approaching to 0.09 at 106 Hz.en
dc.publisherSpringer Science + Business Mediaen
dc.relation.urlhttp://link.springer.com/10.1007/s40145-013-0068-7en
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.en
dc.subjectmultiferroic ceramicsen
dc.subjectdielectric propertiesen
dc.subjectRaman spectraen
dc.subjectmicrostructureen
dc.titleStructural, spectroscopic, and dielectric characterizations of Mn-doped 0.67BiFeO3-0.33BaTiO3 multiferroic ceramicsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Advanced Ceramicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionNational Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing, 210093, Chinaen
dc.contributor.institutionNational Laboratory of Solid State Microstructures, Department of Materials Science and Engineering, Nanjing University, Nanjing, 210093, Chinaen
kaust.authorAl-Kassab, Talaaten
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