skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Magnetic, dielectric, and magneto-dielectric properties of rare-earth-substituted Aurivillius phase Bi₆Fe₁.₄Co₀.₆Ti₃O₁₈

Abstract

We investigate the magnetic, dielectric, and magnetodielectric properties of rare-earth-substituted Aurivillius phase Bi₆Fe₁.₄Co₀.₆Ti₃O₁₈. The room-temperature ferromagnetic behavior is observed in all samples, and the rare-earth-substituted samples exhibit an enhanced magnetization. The weak ferromagnetism can be ascribed to the spin canting of the antiferromagnetic coupling of the Fe-based and Co-based sublattices via Dzyaloshinsky-Moriya interaction. The dielectric loss of all samples exhibits two dielectric relaxation peaks corresponding to two different relaxation mechanisms. One relaxation process with E{sub a}=0.5 eV is related to the hoping process of oxygen vacancies and the other one with E{sub a}=1.6 eV can be ascribed to the intrinsic conduction. The Gd-doped sample exhibits a remarkable magnetodielectric effect (9.4%) at RT implying this Aurivillius phase may be the potential candidate for magnetodielectric applications.

Authors:
; ; ; ; ; ;  [1];  [1]
  1. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031 (China)
Publication Date:
OSTI Identifier:
22305833
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 116; Journal Issue: 15; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTIFERROMAGNETISM; BISMUTH COMPOUNDS; COBALT COMPOUNDS; COUPLING; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; DOPED MATERIALS; FERROMAGNETISM; INTERACTIONS; IRON COMPOUNDS; MAGNETIC PROPERTIES; MAGNETIZATION; OXYGEN; OXYGEN COMPOUNDS; RARE EARTH ADDITIONS; RELAXATION; SPIN; TEMPERATURE RANGE 0273-0400 K; TITANIUM COMPOUNDS; VACANCIES

Citation Formats

Zuo, X. Z., Yang, J., E-mail: jyang@issp.ac.cn, Yuan, B., Tang, X. W., Zhang, K. J., Zhu, X. B., Song, W. H., Dai, J. M., E-mail: jmdai@issp.ac.cn, Song, D. P., University of Science and Technology of China, Hefei 230026, Sun, Y. P., University of Science and Technology of China, Hefei 230026, and High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031. Magnetic, dielectric, and magneto-dielectric properties of rare-earth-substituted Aurivillius phase Bi₆Fe₁.₄Co₀.₆Ti₃O₁₈. United States: N. p., 2014. Web. doi:10.1063/1.4898318.
Zuo, X. Z., Yang, J., E-mail: jyang@issp.ac.cn, Yuan, B., Tang, X. W., Zhang, K. J., Zhu, X. B., Song, W. H., Dai, J. M., E-mail: jmdai@issp.ac.cn, Song, D. P., University of Science and Technology of China, Hefei 230026, Sun, Y. P., University of Science and Technology of China, Hefei 230026, & High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031. Magnetic, dielectric, and magneto-dielectric properties of rare-earth-substituted Aurivillius phase Bi₆Fe₁.₄Co₀.₆Ti₃O₁₈. United States. https://doi.org/10.1063/1.4898318
Zuo, X. Z., Yang, J., E-mail: jyang@issp.ac.cn, Yuan, B., Tang, X. W., Zhang, K. J., Zhu, X. B., Song, W. H., Dai, J. M., E-mail: jmdai@issp.ac.cn, Song, D. P., University of Science and Technology of China, Hefei 230026, Sun, Y. P., University of Science and Technology of China, Hefei 230026, and High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031. 2014. "Magnetic, dielectric, and magneto-dielectric properties of rare-earth-substituted Aurivillius phase Bi₆Fe₁.₄Co₀.₆Ti₃O₁₈". United States. https://doi.org/10.1063/1.4898318.
@article{osti_22305833,
title = {Magnetic, dielectric, and magneto-dielectric properties of rare-earth-substituted Aurivillius phase Bi₆Fe₁.₄Co₀.₆Ti₃O₁₈},
author = {Zuo, X. Z. and Yang, J., E-mail: jyang@issp.ac.cn and Yuan, B. and Tang, X. W. and Zhang, K. J. and Zhu, X. B. and Song, W. H. and Dai, J. M., E-mail: jmdai@issp.ac.cn and Song, D. P. and University of Science and Technology of China, Hefei 230026 and Sun, Y. P. and University of Science and Technology of China, Hefei 230026 and High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031},
abstractNote = {We investigate the magnetic, dielectric, and magnetodielectric properties of rare-earth-substituted Aurivillius phase Bi₆Fe₁.₄Co₀.₆Ti₃O₁₈. The room-temperature ferromagnetic behavior is observed in all samples, and the rare-earth-substituted samples exhibit an enhanced magnetization. The weak ferromagnetism can be ascribed to the spin canting of the antiferromagnetic coupling of the Fe-based and Co-based sublattices via Dzyaloshinsky-Moriya interaction. The dielectric loss of all samples exhibits two dielectric relaxation peaks corresponding to two different relaxation mechanisms. One relaxation process with E{sub a}=0.5 eV is related to the hoping process of oxygen vacancies and the other one with E{sub a}=1.6 eV can be ascribed to the intrinsic conduction. The Gd-doped sample exhibits a remarkable magnetodielectric effect (9.4%) at RT implying this Aurivillius phase may be the potential candidate for magnetodielectric applications.},
doi = {10.1063/1.4898318},
url = {https://www.osti.gov/biblio/22305833}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 15,
volume = 116,
place = {United States},
year = {Tue Oct 21 00:00:00 EDT 2014},
month = {Tue Oct 21 00:00:00 EDT 2014}
}