AC susceptibility and FC-ZFC magnetic properties of SrTbxFe12−xO19 and SrTmxFe12−xO19 hexaferrites: Comparative study


Slimani Y., Almessiere M., Korkmaz A. , Baykal A., Ercan I.

Journal of Rare Earths, vol.39, pp.1003-1009, 2021 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 39
  • Publication Date: 2021
  • Doi Number: 10.1016/j.jre.2020.07.026
  • Title of Journal : Journal of Rare Earths
  • Page Numbers: pp.1003-1009
  • Keywords: M-type hexaferrites, Magnetic properties, AC susceptibility, FC, ZFC, Rare earths, GLASS BEHAVIOR, SPIN-GLASS

Abstract

© 2020 Chinese Society of Rare EarthsIn this comparative study, Tb and Tm substituted Sr-hexaferrites (HFs) with the chemical compositions of SrTbxFe12−xO19 and SrTmxFe12−xO19 (x = 0.00, 0.02 and 0.04) were fabricated via citrate sol-gel approach. The AC susceptibility and FC-ZFC magnetization were investigated. The product structure and morphologies were also investigated via XRD, TEM and SEM along with EDX. Measurements of temperature dependence of magnetization M-T and AC magnetic susceptibility versus temperature were carried out. The various synthesized HFs displayed ferrimagnetic behavior within 10–325 K. At lower temperatures, super-spin glass-like behavior was noticed. Neel-Arrhenius and Vogel-Fulcher models were employed to explore the experimental data of AC susceptibility.