Mössbauer Studies and the Microwave Properties of Al{sup 3+}- and In{sup 3+}-Substituted Barium Hexaferrites

Journal Article · Sat Sep 15 00:00:00 EDT 2018 · Physics of the Solid State

DOI:https://doi.org/10.1134/S1063783418090342· OSTI ID:22771028

Kostishin, V. G.; Korovushkin, V. V.; Panina, L. V. ^[1]; Trukhanov, S. V. ^[2]; Turchenko, V. A. ^[3]; Polyakov, I. S.; Rakhmatullin, R. Kh.; Filatov, G. A. ^[1]; Zubar’, T. I. ^[4]; Oleinik, V. V.; Yakovenko, E. S.; Matsui, L. Yu.; Vovchenko, L. L.; Launets, V. L. ^[5]; Trukhanova, E. L. ^[2]

---

1. National University of Science and Technology MISiS (Russian Federation)
2. National Academy of Sciences of Belarus, Scientific and Practical Materials Research Centre (Belarus)
3. Joint Nuclear Research Institute, Frank Neutron Physics Laboratory (Russian Federation)
4. A.V. Lykov Heat and Mass Transfer Institute of National Academy of Sciences of Belarus (Belarus)
5. Taras Shevchenko National University of Kyiv (Ukraine)

The correlation of the chemical composition, the structure, and the microwave characteristic of solid solutions of the BaFe{sub 12–x}D{sub x}O{sub 19} (0.1 ≤ x ≤ 1.2) barium hexaferrite substituted with diamagnetic Al{sup 3+} and In{sup 3+} ions has been studied. The precise data on the crystal structure have been obtained by powder neutron diffraction using a high-resolution Fourier diffractometer (Dubna, JINR). The data on the distribution of the diamagnetic substituting ions in the hexaferrite structure have been obtained by Mössbauer spectroscopy. The microwave properties (the transmittance and the reflectance) have been studied in the frequency range 20–65 GHz and in external magnetic fields to 8 kOe. It is found that the transmission spectra are characterized by a peak that corresponds to the resonant frequency of the electromagnetic energy absorption, which is due to the ferromagnetic resonance phenomenon. The correlation of the chemical composition, the features of the ion distribution in the structure, and the electromagnetic properties has been revealed. It is shown that external magnetic fields shift the absorption peak of electromagnetic radiation to higher frequencies due to an increase in the magnetocrystal anisotropy. The results enable the conclusion that the features of the intrasublattice interactions and the electromagnetic properties should be explained using the phenomenological Goodenough–Kanamori model.

• OSTI ID: 22771028
• Journal Information: Physics of the Solid State, Journal Name: Physics of the Solid State Journal Issue: 9 Vol. 60; ISSN 1063-7834
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM ADDITIONS
ANISOTROPY
BARIUM COMPOUNDS
CORRELATIONS
CRYSTAL STRUCTURE
DIFFRACTOMETERS
DISTRIBUTION
ENERGY ABSORPTION
FERRITES
FERROMAGNETIC RESONANCE
GHZ RANGE
INDIUM ADDITIONS
MAGNETIC FIELDS
MICROWAVE RADIATION
MOESSBAUER EFFECT
NEUTRON DIFFRACTION
RESOLUTION
SOLID SOLUTIONS
SPECTRA
TRANSMISSION