Electromagnetic properties in the structure of Cerium-Copper substituted barium hexaferrite

Yener T., Araz İ., Kırsoy A., Yalçın O., Okutan M., Haring Bolivar P.

Journal of Molecular Structure, vol.1269, 2022 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 1269
  • Publication Date: 2022
  • Doi Number: 10.1016/j.molstruc.2022.133752
  • Journal Name: Journal of Molecular Structure
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, INSPEC
  • Keywords: Absorption loss, complex permeability, complex permittivity, reflection loss, shielding effectiveness
  • Yıldız Technical University Affiliated: No

Abstract

In this study Ce3+-Cu2+ doped barium hexaferrite Ba0.5Ce0.5CuFe11O19 composite sample was synthesized by a conventional method and barium hexaferrites/CeO2 phase composition, X-Ray Diffractometer were examined. Sample morphology was observed by SEM. A VSM was used to analyze the magnetic properties of the ferrites. Complex permittivity, permeability, reflection loss, absorption loss and shielding effectiveness were analyzed by using a VNA measuring the transmission/reflection coaxial airline method. The phase changes of the crystal structure because of the effect of Ce3+ ions into Ba2+ site and Cu2+ ions into Fe3+ areas were investigated. The resulting composition in these two resonance phases has a maximum absorption loss value at ∼6.48 GHz and ∼11.25 GHz and a maximum reflection loss value at the same frequencies. In this synthesized composition structure, it has been observed that it has a maximum reflection loss value of approximately –22.2dB and the highest shielding effectiveness value of 33.3 dB at microwave frequency 11.25 GHz.