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

Publons ID19503921
Wos IDWOS:000427580800042
Doi10.1016/j.jmmm.2018.02.050
TitleSignificant reduction of saturation magnetization and microwave-reflection loss in barium-natural ferrite via Nd<SUP>3+</SUP> substitution
First AuthorWidanarto, W.; Ardenti, E.; Ghoshal, S. K.;
Last AuthorCahyanto, W. T.
AuthorsWidanarto, W; Ardenti, E; Ghoshal, SK; Kurniawan, C; Effendi, M; Cahyanto, WT;
Publish DateJUN 15 2018
Journal NameJOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Citation16
AbstractTo 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 mu m. Both saturation magnetization and microwave reflection losses of these barium-ferrites were significantly reduced by increasing the Nd3+ content. (C) 2018 Elsevier B.V. All rights reserved.
Publish TypeJournal
Publish Year2018
Page Begin288
Page End291
Issn0304-8853
Eissn1873-4766
Urlhttps://www.webofscience.com/wos/woscc/full-record/WOS:000427580800042
AuthorWAHYU TRI CAHYANTO, S.Si, M.Si, Ph.D
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