• DOI:10.1063/1.5084762
• Corpus ID: 53701650

Site preference and magnetic properties of Zn-Sn-substituted strontium hexaferrite

@article{Dixit2018SitePA,
  title={Site preference and magnetic properties of Zn-Sn-substituted strontium hexaferrite},
  author={Vivek Dixit and Dinesh Thapa and Bipin Lamichhane and Chandani N. Nandadasa and Yang-Ki Hong and Seong-Gon Kim},
  journal={Journal of Applied Physics},
  year={2018}
}

• V. Dixit, D. Thapa, +3 authors Seong-Gon Kim
• Published 9 November 2018
• Materials Science
• Journal of Applied Physics

The site preference and magnetic properties of Zn, Sn, and Zn-Sn substituted M-type strontium hexaferrite ( SrFe12O19) have been investigated using first-principles total-energy calculations based on density-functional theory. The site occupancy of substituted atoms was estimated by calculating the substitution energies of different configurations. The distribution of different configurations during the annealing process at high temperature was determined using the formation probabilities of configurations to calculate magnetic properties of substituted strontium hexaferrite. We found that the magnetization and magnetocrystalline anisotropy are closely related to the distributions of Zn-Sn ions on the five Fe sites. Our calculation shows that in SrFe11.5Zn0.5O19, Zn atoms prefer to occupy 4f1, 12k, and 2a sites with occupation probabilities of 78%, 19%, and 3%, respectively, while in SrFe11.5SnO19, Sn atoms occupy the 12k and 4f2 sites with occupation probabilities of 54% and 46%, respectively. We ...