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Title: Magnetic and absorbing properties of M-type substituted hexaferrites BaFe{sub 12–x}Ga{sub x}O{sub 19} (0.1 < x < 1.2)

Abstract

X-ray powder diffraction is used to determine the unit cell parameters and to refine the crystal structure of the solid solutions of M-type hexagonal barium ferrite BaFe{sub 12–x}Ga{sub x}O{sub 19} (x = 0.1–1.2) with isostructural diamagnetic cation Ga{sup 3+} substitution at T = 300 K. As the level of substitution increases, the unit cell parameters are shown to decrease monotonically. The temperature (300 K ≤ T ≤ 750 K, H = 8.6 kOe) and field (T = 300 K,–20 kOe ≤ H ≤ 20 kOe) dependences of the saturation magnetization of these solid solutions are studied with a vibrating-sample magnetometer. The concentration dependences of the Curie temperature T{sub C}, the specific spontaneous magnetization, and the coercive force are plotted. The magnetic parameters are found to decrease with increasing substitution. The microwave properties of the solid solutions are analyzed in an external magnetic field (0 ≤ H ≤ 4 kOe). As the cation Ga{sup 3+} concentration increases from x = 0.1 to 0.6, the natural ferromagnetic resonance (NFMR) frequency decreases; as the concentration increases further to x = 1.2, this frequency again increases. As the cation Ga{sup 3+} concentration increases, the NFMR line width increases, which indicates a widening of themore » frequency range where electromagnetic radiation is intensely absorbed. Here, the resonance curve peak amplitude changes insignificantly. The shift of the NFMR frequency in an applied magnetic field is more pronounced for samples with low cation Ga{sup 3+} concentrations. The role of diamagnetic substitution is revealed, and the prospects and advantages of Ga-substituted beryllium hexaferrite as the material absorbing high-frequency electromagnetic radiation are demonstrated.« less

Authors:
;  [1]; ;  [2];  [1];  [3]; ; ;  [4]
  1. National Academy of Sciences of Belarus, Scientific-Practical Materials Research Centre (Belarus)
  2. National University of Science and Technology MISiS (Russian Federation)
  3. Joint Institute for Nuclear Research (Russian Federation)
  4. Taras Shevchenko National University of Kyiv (Ukraine)
Publication Date:
OSTI Identifier:
22617184
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 123; Journal Issue: 3; Other Information: Copyright (c) 2016 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AMPLITUDES; BARIUM COMPOUNDS; COERCIVE FORCE; CONCENTRATION RATIO; CRYSTAL STRUCTURE; CRYSTALS; CURIE POINT; FERRITES; FERROMAGNETIC RESONANCE; GALLIUM ADDITIONS; LINE WIDTHS; MAGNETIC FIELDS; MAGNETIZATION; MICROWAVE RADIATION; POWDERS; SATURATION; SOLID SOLUTIONS; SOLIDS; VIBRATING SAMPLE MAGNETOMETERS; X-RAY DIFFRACTION

Citation Formats

Trukhanov, S. V., E-mail: trukhanov@ifttp.bas-net.by, Trukhanov, A. V., Kostishin, V. G., Panina, L. V., Kazakevich, I. S., Turchenko, V. A., Oleinik, V. V., Yakovenko, E. S., and Matsui, L. Yu. Magnetic and absorbing properties of M-type substituted hexaferrites BaFe{sub 12–x}Ga{sub x}O{sub 19} (0.1 < x < 1.2). United States: N. p., 2016. Web. doi:10.1134/S1063776116090089.
Trukhanov, S. V., E-mail: trukhanov@ifttp.bas-net.by, Trukhanov, A. V., Kostishin, V. G., Panina, L. V., Kazakevich, I. S., Turchenko, V. A., Oleinik, V. V., Yakovenko, E. S., & Matsui, L. Yu. Magnetic and absorbing properties of M-type substituted hexaferrites BaFe{sub 12–x}Ga{sub x}O{sub 19} (0.1 < x < 1.2). United States. doi:10.1134/S1063776116090089.
Trukhanov, S. V., E-mail: trukhanov@ifttp.bas-net.by, Trukhanov, A. V., Kostishin, V. G., Panina, L. V., Kazakevich, I. S., Turchenko, V. A., Oleinik, V. V., Yakovenko, E. S., and Matsui, L. Yu. Thu . "Magnetic and absorbing properties of M-type substituted hexaferrites BaFe{sub 12–x}Ga{sub x}O{sub 19} (0.1 < x < 1.2)". United States. doi:10.1134/S1063776116090089.
@article{osti_22617184,
title = {Magnetic and absorbing properties of M-type substituted hexaferrites BaFe{sub 12–x}Ga{sub x}O{sub 19} (0.1 < x < 1.2)},
author = {Trukhanov, S. V., E-mail: trukhanov@ifttp.bas-net.by and Trukhanov, A. V. and Kostishin, V. G. and Panina, L. V. and Kazakevich, I. S. and Turchenko, V. A. and Oleinik, V. V. and Yakovenko, E. S. and Matsui, L. Yu.},
abstractNote = {X-ray powder diffraction is used to determine the unit cell parameters and to refine the crystal structure of the solid solutions of M-type hexagonal barium ferrite BaFe{sub 12–x}Ga{sub x}O{sub 19} (x = 0.1–1.2) with isostructural diamagnetic cation Ga{sup 3+} substitution at T = 300 K. As the level of substitution increases, the unit cell parameters are shown to decrease monotonically. The temperature (300 K ≤ T ≤ 750 K, H = 8.6 kOe) and field (T = 300 K,–20 kOe ≤ H ≤ 20 kOe) dependences of the saturation magnetization of these solid solutions are studied with a vibrating-sample magnetometer. The concentration dependences of the Curie temperature T{sub C}, the specific spontaneous magnetization, and the coercive force are plotted. The magnetic parameters are found to decrease with increasing substitution. The microwave properties of the solid solutions are analyzed in an external magnetic field (0 ≤ H ≤ 4 kOe). As the cation Ga{sup 3+} concentration increases from x = 0.1 to 0.6, the natural ferromagnetic resonance (NFMR) frequency decreases; as the concentration increases further to x = 1.2, this frequency again increases. As the cation Ga{sup 3+} concentration increases, the NFMR line width increases, which indicates a widening of the frequency range where electromagnetic radiation is intensely absorbed. Here, the resonance curve peak amplitude changes insignificantly. The shift of the NFMR frequency in an applied magnetic field is more pronounced for samples with low cation Ga{sup 3+} concentrations. The role of diamagnetic substitution is revealed, and the prospects and advantages of Ga-substituted beryllium hexaferrite as the material absorbing high-frequency electromagnetic radiation are demonstrated.},
doi = {10.1134/S1063776116090089},
journal = {Journal of Experimental and Theoretical Physics},
number = 3,
volume = 123,
place = {United States},
year = {Thu Sep 15 00:00:00 EDT 2016},
month = {Thu Sep 15 00:00:00 EDT 2016}
}