Synthesis and magnetic properties of Fe1.1Ga0.9O3 measured by electron spin resonance technique

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Resumo

The crystal formation of Fe-Ga oxides and Fe-Ga-Cu borates was studied in multicomponent flux system based on Bi2Mo3O12-Na2B4O7. Thermal dependence of magnetization of electron spin resonance of obtained Fe1.1Ga0.9O3 single crystal was studied, the Curie — Weiss temperature (θCW = 289 K) and ferrimagnet-paramagnet phase transition temperature TC = 288 K have been defined. The spin-wave resonance lines are observed in the spectrum of magnetic resonance in the ordered phase.

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Sobre autores

I. Yatsyk

Federal Research Center Kazan Scientific Center of Russian Academy of Sciences

Autor responsável pela correspondência
Email: i.yatzyk@gmail.com

Zavoisky Physical-Technical Institute

Rússia, Kazan

R. Eremina

Federal Research Center Kazan Scientific Center of Russian Academy of Sciences

Email: i.yatzyk@gmail.com

Zavoisky Physical-Technical Institute

Rússia, Kazan

Е. Moshkina

Federal Research Center Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences

Email: i.yatzyk@gmail.com

Kirensky Institute of Physics

Rússia, Krasnoyarsk

R. Batulin

Kazan Federal University

Email: i.yatzyk@gmail.com

Institute of Physics

Rússia, Kazan

A. Shestakov

Prokhorov General Physics Institute of the Russian Academy of Sciences

Email: i.yatzyk@gmail.com
Rússia, Moscow

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2. Fig. 1. Temperature dependences of Fe1.1Ga0.9O3: magnetization (FC and ZFC regime) (a); ∂(M2)/∂T in the orientation when the magnetic field is parallel to the c axis of the crystal (b).

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3. Fig. 2. Field dependences of magnetization of Fe1.1Ga0.9O3.

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4. Fig. 3. Evolution of the ESR line with a change in angle for Fe1.1Ga0.9O3 at room temperature (297 K) in the ab (a), bc (b) plane.

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5. Fig. 4. Angular dependence of the ESR line width (a) and the resonance field (b) for Fe1.1Ga0.9O3 at room temperature (297 K) in the bc plane.

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6. Fig. 5. Evolution of the EPR spectrum line with temperature change for Fe1.1Ga0.9O3 at an angle of 160° in the ab plane.

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7. Fig. 6. Temperature dependence of the integrated intensity (a), ESR line width (b) and resonance field (c) for Fe1.1Ga0.9O3 in the ac plane.

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8. Fig. 7. Temperature dependence of magnetic susceptibility for Fe1.1Ga0.9O3 in the temperature range from 300 to 450 K.

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9. Fig. 8. Detailed examination of the angular dependence of the ESR spectra for Fe1.1Ga0.9O3 at room temperature (297 K) in the ab plane.

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