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Significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd3+ substitution

To minimize the signal degradation, many electronic devices require efficient microwave absorbers with very low reflection-losses within the X-band. We prepared a series of trivalent neodymium-ion (Nd3+) substituted barium-natural ferrite using a modified solid-state reaction method. The effect of t...

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Main Authors: Widanarto, W., Ardenti, E., Ghoshal, S. K., Kurniawan, C., Effendi, M., Cahyanto, W. T.
Format: Article
Published: Elsevier B.V. 2018
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/85609/
http://dx.doi.org/10.1016/j.jmmm.2018.02.050
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spelling my.utm.856092020-06-30T08:54:15Z http://eprints.utm.my/id/eprint/85609/ Significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd3+ substitution Widanarto, W. Ardenti, E. Ghoshal, S. K. Kurniawan, C. Effendi, M. Cahyanto, W. T. QC Physics To minimize the signal degradation, many electronic devices require efficient microwave absorbers with very low reflection-losses within the X-band. We prepared a series of trivalent neodymium-ion (Nd3+) substituted barium-natural ferrite using a modified solid-state reaction method. The effect of the Nd3+-ion content on the structure, surface morphology, magnetic properties, and microwave reflection loss was studied. The composites were characterized using X-ray diffraction, a vibrating sample magnetometer, scanning electron microscopy, and a vector network analyzer. The XRD patterns of the sample without Nd3+ reveal the presence of BaFe12O19 (hexagonal) and BaFe2O4 (rhombohedral) phases. Furthermore, a new hexagonal crystal phase of Ba6Nd2Fe4O15 appeared after substituting Nd3+. The average size of the prepared barium-natural ferrite particles was estimated to be between 0.4 and 0.8 μm. Both saturation magnetization and microwave reflection losses of these barium-ferrites were significantly reduced by increasing the Nd3+ content. Elsevier B.V. 2018-06 Article PeerReviewed Widanarto, W. and Ardenti, E. and Ghoshal, S. K. and Kurniawan, C. and Effendi, M. and Cahyanto, W. T. (2018) Significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd3+ substitution. Journal of Magnetism and Magnetic Materials, 456 . pp. 288-291. ISSN 0304-8853 http://dx.doi.org/10.1016/j.jmmm.2018.02.050
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic QC Physics
spellingShingle QC Physics
Widanarto, W.
Ardenti, E.
Ghoshal, S. K.
Kurniawan, C.
Effendi, M.
Cahyanto, W. T.
Significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd3+ substitution
description To minimize the signal degradation, many electronic devices require efficient microwave absorbers with very low reflection-losses within the X-band. We prepared a series of trivalent neodymium-ion (Nd3+) substituted barium-natural ferrite using a modified solid-state reaction method. The effect of the Nd3+-ion content on the structure, surface morphology, magnetic properties, and microwave reflection loss was studied. The composites were characterized using X-ray diffraction, a vibrating sample magnetometer, scanning electron microscopy, and a vector network analyzer. The XRD patterns of the sample without Nd3+ reveal the presence of BaFe12O19 (hexagonal) and BaFe2O4 (rhombohedral) phases. Furthermore, a new hexagonal crystal phase of Ba6Nd2Fe4O15 appeared after substituting Nd3+. The average size of the prepared barium-natural ferrite particles was estimated to be between 0.4 and 0.8 μm. Both saturation magnetization and microwave reflection losses of these barium-ferrites were significantly reduced by increasing the Nd3+ content.
format Article
author Widanarto, W.
Ardenti, E.
Ghoshal, S. K.
Kurniawan, C.
Effendi, M.
Cahyanto, W. T.
author_facet Widanarto, W.
Ardenti, E.
Ghoshal, S. K.
Kurniawan, C.
Effendi, M.
Cahyanto, W. T.
author_sort Widanarto, W.
title Significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd3+ substitution
title_short Significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd3+ substitution
title_full Significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd3+ substitution
title_fullStr Significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd3+ substitution
title_full_unstemmed Significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd3+ substitution
title_sort significant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via nd3+ substitution
publisher Elsevier B.V.
publishDate 2018
url http://eprints.utm.my/id/eprint/85609/
http://dx.doi.org/10.1016/j.jmmm.2018.02.050
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score 13.211869

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