Original Research Articles

Effect of La-Substituted Barium Hexaferrite on the Structural Characteristics and Magnetic Properties for Microwave Absorbing Material

Yana Taryana, Yosef Sarwanto & Wisnu Ari Adi

Received 4 Sep 2026, Published online: 30 Jun 2021

Published in Volume 1, Issue 1, 2021, pages 13-17

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Abstract

Ba1-xLaxFe12O19 with ion substitution La3+ (x = 0 – 0.7) has been produced via the mechanical milling technique of the solid reaction method. Considering that Ba1-xLaxFe12O19 is expected to be used as a microwave absorbent, it is necessary to characterize its structural and magnetic features. The refinement results of the X-ray diffraction (XRD) data show that a single-phase hexagonal structure (space group P63/mmc) is obtained for x = 0 and x = 1, while for the composition of x > 0.1 is multiphase. The lattice parameters and crystal volume decreased, whereas the lattice strain was found to advance with increasing La substitution in the sample. For x = 0.1, the crystallite size is constant while the lattice strain increases. Employing a scanning electron microscope (SEM), the observation of particle morphology shows that the single-phase (x = 0 and x = 0.1) has a comparably unvarying particle size circulation, while for x > 0.1, different particle shapes and sizes are found. The saturation magnetization raises while the coercivity field reduces due to the substitution of La for x = 0.1. Furthermore, for x > 0.1, the saturation magnetization decreases while the coercivity field increases.

Keywords

  • Barium hexaferrite
  • Ba1-xLaxFe12O19
  • La-substitution
  • Structural characteristics
  • Magnetic properties
  • Microwave absorbing material

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© 2021 Yana Taryana, Yosef Sarwanto, Wisnu Ari Adi. This article is published under CC BY-NC-ND 4.0.

How to cite

Yana Taryana, Y. T., Yosef Sarwanto, Y. S., & Wisnu Ari Adi, W. A. A. (2021). Effect of La-Substituted Barium Hexaferrite on the Structural Characteristics and Magnetic Properties for Microwave Absorbing Material. Journal of Magnetism and Its Applications, 1(1), 13-17.

How to Cite

Effect of La-Substituted Barium Hexaferrite on the Structural Characteristics and Magnetic Properties for Microwave Absorbing Material. (2021). Journal of Magnetism and Its Applications, 1(1), 13-17. https://www.jourmag.org/index.php/jma/article/view/2