Journal of the Korean Physical Society

, Volume 73, Issue 11, pp 1708–1711 | Cite as

Investigation of Spin Reorientation in Ga Substituted Y-type Hexaferrite based on Mössbauer Spectroscopy

  • Jung Tae Lim
  • Jeonghun Kim
  • Chul Sung KimEmail author


The polycrystalline sample of Ba2Co1.5Mg0.5Fe11.88Ga0.12O22 Y-type hexaferrite, doped with Ga-cation, was prepared by using the solid-state reaction method. The crystalline structure of sample was investigated by x-ray diffractometer (XRD), and the magnetic properties of sample were measured by vibrating sample magnetometer (VSM), and Mössbauer spectrometer. The crystal structure of prepared sample was determined to be rhombohedral with space group R-3m. From the temperature dependence of the magnetization curves under 100 Oe between 4.2 and 740 K, two temperature-dependent magnetic transitions occurred in the Ba2Co1.5Mg0.5Fe11.88Ga0.12O22 sample. Mössbauer spectra of the sample were analyzed at various temperatures ranging from 4.2 to 620 K, and the Ba2Co1.5Mg0.5Fe11.88Ga0.12O22 sample showed abrupt changes in Hhf and EQ at 200 K, indicating the spin transition effect. We have also determined the magnetic transition temperature TC, in addition to the temperature dependent magnetization and ZVC measurements.


Y-type hexaferrite non-magnetic doped hexaferrite spin transition Mössbauer spectroscopy 


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Copyright information

© The Korean Physical Society 2018

Authors and Affiliations

  1. 1.Powder and Ceramic DivisionKorea Institute of Materials ScienceChangwonKorea
  2. 2.Department of PhysicsKookmin UniversitySeoulKorea

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