Crystal structure, magnetic, and microwave properties of solid solutions BaFe12–x Ga x O19 (0.1 ≤ x ≤ 1.2)
Autor: | S. G. Dzhabarov, S. V. Trukhanov, L. Yu. Matsui, An.V. Trukhanov, I. S. Kazakevich, Ludmila Vovchenko, V. V. Oleinik, V.A. Turchenko, V. L. Launets, E. S. Yakovenko |
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Rok vydání: | 2016 |
Předmět: |
Materials science
Condensed matter physics Resonance chemistry.chemical_element 02 engineering and technology Crystal structure 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Ferromagnetic resonance Electronic Optical and Magnetic Materials chemistry.chemical_compound Magnetization chemistry 0103 physical sciences Diamagnetism Gallium 010306 general physics 0210 nano-technology Barium ferrite Solid solution |
Zdroj: | Physics of the Solid State. 58:1792-1797 |
ISSN: | 1090-6460 1063-7834 |
Popis: | The crystal structure of solid solutions of an M-type hexagonal barium ferrite BaFe1–x Ga x O19 (x = 0.1–1.2) with the isostructural diamagnetic substitution of Ga3+ ions has been studied by X-ray diffraction. The unit cell parameters have been calculated for all compositions. The field and temperature dependences of the specific magnetization of these solid solutions have been measured by vibrational magnetometry. The microwave properties of BaFe12–x Ga x O19 (x = 0.1–1.2) have been studied in a bias field. It has been shown that the frequency of natural ferromagnetic resonance decreases as the Ga concentration increases from x = 0.1 to x = 0.6 and it increases once again as the Ga concentration increases to x = 1.2. As the Ga concentration increases, the natural ferromagnetic resonance lines broaden. This indicates an increase in the frequency range of strong absorption of electromagnetic radiation. In this case, the amplitude of the resonance curve peak changes insignificantly. The frequency shift of the natural ferromagnetic resonance in an external magnetic field increases as the gallium ion concentration in the sample decreases. |
Databáze: | OpenAIRE |
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