Mössbauer and magnetic study of Mn, Zr and Cd substituted W-type hexaferrites prepared by co-precipitation

Muhammad Javed Iqbal, Rafaqat Ali Khan, Shigemi Mizukami, Terunobu Miyazaki

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

BaCo2-xMnxFe16-2y(Zr-Cd)yO 27 (x = 0-0.5 and y = 0-1.0) hexaferrite nanocrystallites of average sizes in the range of 33-42 nm are synthesized by the chemical co-precipitation method. The synthesized materials are characterized using different techniques including X-ray diffraction (XRD), energy dispersive X-ray florescence (ED-XRF), scanning electron microscope (SEM), Mössbauer spectrometer and vibrating-sample magnetometer (VSM). Based on analysis of the data obtained from Mössbauer spectral studies, doping is believed to have occurred preferably in the vicinity of 12k sub-lattice, i.e. fIV (4e, 4fIV), 2b (6g, 4f) and 2d site. Variations in the saturation magnetization (77.1-60.9 emu g-1), remanent magnetization (22.08-31.23 emu g-1) and coercivity (1570.1-674.7 Oe) exhibit tunable behavior with dopant content and therefore can be useful for application in various magnetic devices.

Original languageEnglish
Pages (from-to)1980-1986
Number of pages7
JournalMaterials Research Bulletin
Volume46
Issue number11
DOIs
Publication statusPublished - 2011 Nov 1

Keywords

  • A. Magnetic materials
  • B. Chemical synthesis
  • C. Mössbauer Spectroscopy
  • C. X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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