Mössbauer Studies and the Microwave Properties of Al3+- and In3+-Substituted Barium Hexaferrites


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The correlation of the chemical composition, the structure, and the microwave characteristic of solid solutions of the BaFe12 – xDxO19 (0.1 ≤ x ≤ 1.2) barium hexaferrite substituted with diamagnetic Al3+ and In3+ 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.

Sobre autores

A. Trukhanov

Scientific and Practical Materials Research Centre; National University of Science and Technology MISiS

Autor responsável pela correspondência
Email: truhanov86@mail.ru
Belarus, Minsk, 220072; Moscow, 119049

V. Kostishin

National University of Science and Technology MISiS

Email: truhanov86@mail.ru
Rússia, Moscow, 119049

V. Korovushkin

National University of Science and Technology MISiS

Email: truhanov86@mail.ru
Rússia, Moscow, 119049

L. Panina

National University of Science and Technology MISiS

Email: truhanov86@mail.ru
Rússia, Moscow, 119049

S. Trukhanov

Scientific and Practical Materials Research Centre

Email: truhanov86@mail.ru
Belarus, Minsk, 220072

V. Turchenko

Frank Neutron Physics Laboratory

Email: truhanov86@mail.ru
Rússia, Dubna, Moscow oblast, 141980

I. Polyakov

National University of Science and Technology MISiS

Email: truhanov86@mail.ru
Rússia, Moscow, 119049

R. Rakhmatullin

National University of Science and Technology MISiS

Email: truhanov86@mail.ru
Rússia, Moscow, 119049

G. Filatov

National University of Science and Technology MISiS

Email: truhanov86@mail.ru
Rússia, Moscow, 119049

T. Zubar’

A.V. Lykov Heat and Mass Transfer Institute of National Academy of Sciences of Belarus

Email: truhanov86@mail.ru
Belarus, Minsk, 220072

V. Oleinik

Taras Shevchenko National University of Kyiv

Email: truhanov86@mail.ru
Ucrânia, Kyiv, 01033

E. Yakovenko

Taras Shevchenko National University of Kyiv

Email: truhanov86@mail.ru
Ucrânia, Kyiv, 01033

L. Matsui

Taras Shevchenko National University of Kyiv

Email: truhanov86@mail.ru
Ucrânia, Kyiv, 01033

L. Vovchenko

Taras Shevchenko National University of Kyiv

Email: truhanov86@mail.ru
Ucrânia, Kyiv, 01033

V. Launets

Taras Shevchenko National University of Kyiv

Email: truhanov86@mail.ru
Ucrânia, Kyiv, 01033

E. Trukhanova

Scientific and Practical Materials Research Centre; National University of Science and Technology MISiS

Email: truhanov86@mail.ru
Belarus, Minsk, 220072; Moscow, 119049

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