Pecularities of the magnetic structure and microwave properties in Ba(Fe1-xScx)12O19 (x<0.1) hexaferrites

被引：115

作者：

Trukhanov, A. V. ^{[1
,2
]}

Astapovich, K. A. ^{[2
]}

Almessiere, M. A. ^{[3
]}

Turchenko, V. A. ^{[4
,5
,6
]}

Trukhanova, E. L. ^{[1
,2
]}

Korovushkin, V. V. ^{[1
]}

Amirov, A. A. ^{[7
]}

Darwish, M. A. ^{[1
,12
]}

Karpinsky, D. V. ^{[2
,6
,8
]}

Vinnik, D. A. ^{[6
]}

Klygach, D. S. ^{[6
,9
]}

Vakhitov, M. G. ^{[6
,9
]}

Zdorovets, M. V. ^{[10
,11
]}

Kozlovskiy, A. L. ^{[10
]}

Trukhanov, S. V. ^{[2
]}

机构：

[1] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia

[2] SSPA Sci & Pract Mat Res Ctr NAS Belarus, Minsk 220072, BELARUS

[3] Imam Abdulrahman Bin Faisal Univ, IRMC, Dept Biophys, POB 1982, Dammam 31441, Saudi Arabia

[4] Joint Inst Nucl Res, Dubna 141980, Russia

[5] NAS Ukraine, Donetsk Inst Phys & Technol, UA-03680 Kiev, Ukraine

[6] South Ural State Univ, Chelyabinsk 454080, Russia

[7] Immanuel Kant Baltic Fed Univ, Kaliningrad 236016, Russia

[8] Natl Res Univ Elect Technol MIET, Moscow 124498, Russia

[9] Ural Fed Univ, Ekaterinburg, Russia

[10] Inst Nucl Phys Republ Kazakhstan, Nur Sultan, Kazakhstan

[11] LN Gumilyov Eurasian Natl Univ, Astana, Kazakhstan

[12] Tanta Univ, Phys Dept, Fac Sci, Tanta, Egypt

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 822卷

基金：

俄罗斯科学基金会;

关键词：

Hexaferrites; Isovalent substitution; Microwave absorption; Natural ferromagnetic resonance; CRYSTAL-STRUCTURE; MULTIFERROIC PROPERTIES; FERROIC PROPERTIES; SOLID-SOLUTIONS; BARIUM; TEMPERATURE; EVOLUTION; BAFE12O19; CERAMICS; FEATURES;

D O I：

10.1016/j.jallcom.2019.153575

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The peculiarities of the fine atomic and magnetic structure, magnetic properties and microwave characteristics under Sc-substitution were investigated in Ba(Fe1-xScx)(12)O-19 (x <= 0.1) solid solutions. Structural data was obtained using neutron powder diffraction with high resolution on atomic level and was described in the frame of standard P6(3)/mmc Space Group. Almost linear increase of the main lattice parameters and internal stress was explained by the difference in ionic radius of Fe3+ and Sc3+. Magnetic properties were determined by VSM and discussed in terms of Mossbauer studies. The non-linear behavior of the magnetic parameters was explained by the features of Sc3+ ions distribution in the hexaferrite structure and some deviation from strict collinearity in the direction of the magnetic vector. Concentration dependence of coercivity in the concentration range x >= 0.05 was explained by rapid frustration of the magnetic structure (destruction of the magnetic long range ordering due to weakening of the intrasublattice exchange interaction in Fe3+-O2-Fe3+ in the first and second coordination spheres). Microwave properties were investigated using a co-axial method in the high frequency range (20-60 GHz). It has been demonstrated that the nature of electromagnetic absorption in Ba(Fe1-xScx)(12)O-19 (x <= 0.1) solid solutions is caused by natural ferromagnetic resonance. A good correlation was established between the theoretical calculation of the resonant frequency and the experimental results. It opens broad prospects for practical applications of substituted hexaferrites at higher frequencies. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：11

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Pecularities of the magnetic structure and microwave properties in Ba(Fe1-xScx)12O19 (x&lt;0.1) hexaferrites

Pecularities of the magnetic structure and microwave properties in Ba(Fe1-xScx)12O19 (x<0.1) hexaferrites