Tuning the microstructure, magnetostatic and magnetodynamic properties of highly Al-substituted M-type Sr/Ca hexaferrites prepared by citrate-nitrate auto-combustion method

被引：22

作者：

Gorbachev, Evgeny A. ^{[1
]}

Lebedev, Vasily A. ^{[2
]}

Kozlyakova, Ekaterina S. ^{[3
]}

Alyabyeva, Liudmila N. ^{[4
]}

Ahmed, Asmaa ^{[4
]}

Cervellino, Antonio ^{[5
]}

Trusov, Lev A. ^{[1
,6
]}

机构：

[1] Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia

[2] Univ Limerick, Bernal Inst, Limerick V94 T9PX, Ireland

[3] Lomonosov Moscow State Univ, Dept Phys, Moscow 119991, Russia

[4] Moscow Inst Phys & Technol, Ctr Photon & 2D Mat, Lab Terahertz Spect, Dolgoprudnyi 141701, Russia

[5] Paul Scherrer Inst, Lab Synchrotron Radiat Condensed Matter, SLS, CH-5232 Villigen, Switzerland

[6] MSU BIT Univ, Dept Mat Sci, Shenzhen 517182, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2023年 / 49卷 / 16期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

Hard magnetic ferrites; Giant coercivity; Ferromagnetic resonance; Terahertz spectroscopy; Synchrotron X-ray diffraction; MAGNETIC-PROPERTIES;

D O I：

10.1016/j.ceramint.2023.05.177

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Double substitution of strontium hexaferrite by calcium and aluminum leads to a tremendous rise of hard magnetic properties, such as coercivity and natural ferromagnetic resonance frequency (NFMR). However, the properties are also inextricably linked to the material microstructure (especially, particle size), to the solid solution inhomogeneity as well as aluminum ions distribution among iron sites in crystal structure. In this work, we obtained M-type hexaferrite particles Sr(1-x/12)Ca(x/12)Fe(12-x)AlxO(19) (x = 4-6) via a facile citrate-nitrate auto-combustion method and studied the influence of the annealing temperature in a broad range on the microstructure, features of crystal structure and hard magnetic properties. At low annealing temperatures (900-1000 degrees C) hexaferrite nanoparticles with 90% of nominal Al content and a wide chemical distribution are formed. Next, with an increase in the annealing temperature the distribution significantly narrows, chemical composition becomes close to the nominal one and particles size transfer firstly to submicron, then to micron range. The aluminum distribution over iron sites is independent distinctly on the annealing temperature. For all the compositions single domain particles with the maximum coercivity values between 22.8 and 36 kOe are obtained at 1200 degrees C. At 900-1000 degrees C the samples demonstrate coercivities up to 25 kOe, while above 1300 degrees C, the crystallites begin to pass into a polydomain state with a reduced coercivity. The hexaferrites with narrow chemical distribution reveal resonance absorption in sub-terahertz band. The highest NFMR frequency of 270 GHz was observed for x = 5.5 sample annealed at 1400 degrees C.

引用

页码：26411 / 26419

页数：9

共 55 条

[1]

Albanese G., 1979, Ceramurgia International, V5, P3, DOI 10.1016/0390-5519(79)90002-4

[2] Tuning the terahertz electrodynamics in Ba-Pb hexaferrite single crystals [J].

Alyabyeva, L. ;

Zhukova, E. ;

Zhukov, S. ;

Ahmed, A. ;

Vinnik, D. ;

Gorshunov, B. .

MATERIALS RESEARCH BULLETIN, 2023, 161

[3] Lead-substituted barium hexaferrite for tunable terahertz optoelectronics [J].

Alyabyeva, L. N. ;

Prokhorov, A. S. ;

Vinnik, D. A. ;

Anzin, V. B. ;

Ahmed, A. G. ;

Mikheykin, A. ;

Bednyakov, P. ;

Kadlec, C. ;

Kadlec, F. ;

de Prado, E. ;

Prokleska, J. ;

Proschek, P. ;

Kamba, S. ;

Pronin, A., V ;

Dressel, M. ;

Abalmasov, V. A. ;

Dremov, V. V. ;

Schmid, S. ;

Savinov, M. ;

Lunkenheimer, P. ;

Gorshunov, B. P. .

NPG ASIA MATERIALS, 2021, 13 (01)

[4] Electromagnon with Sensitive Terahertz Magnetochromism in a Room-Temperature Magnetoelectric Hexaferrite [J].

Chun, Sae Hwan ;

Shin, Kwang Woo ;

Kim, Hyung Joon ;

Jung, Seonghoon ;

Park, Jaehun ;

Bahk, Young-Mi ;

Park, Hyeong-Ryeol ;

Kyoung, Jisoo ;

Choi, Da-Hye ;

Kim, Dai-Sik ;

Park, Gun-Sik ;

Mitchell, J. F. ;

Kim, Kee Hoon .

PHYSICAL REVIEW LETTERS, 2018, 120 (02)

[5] Progress and prospects of hard hexaferrites for permanent magnet applications [J].

de Julian Fernandez, C. ;

Sangregorio, C. ;

de la Figuera, J. ;

Belec, B. ;

Makovec, D. ;

Quesada, A. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2021, 54 (15)

[6] ANISOTROPY FIELDS IN HEXAGONAL FERRIMAGNETIC OXIDES BY FERRIMAGNETIC RESONANCE [J].

DEBITETTO, DJ .

JOURNAL OF APPLIED PHYSICS, 1964, 35 (12) :3482-+

[7] Tunable order in colloids of hard magnetic hexaferrite nanoplatelets [J].

Eliseev, Artem A. ;

Trusov, Lev A. ;

Anokhin, Evgeny O. ;

Chumakov, Andrei P. ;

Korolev, Vladimir V. ;

Sleptsova, Anastasia E. ;

Boesecke, Peter ;

Pryakhina, Victoria, I ;

Shur, Vladimir Ya ;

Kazin, Pavel E. ;

Eliseev, Andrei A. .

NANO RESEARCH, 2022, 15 (02) :898-906

[8] Rotational dynamics of colloidal hexaferrite nanoplates [J].

Eliseev, Artem A. ;

Eliseev, Andrei A. ;

Trusov, Lev A. ;

Chumakov, Andrei P. ;

Boesecke, Peter ;

Anokhin, Evgeny O. ;

Vasiliev, Alexander V. ;

Sleptsova, Anastasia E. ;

Gorbachev, Evgeny A. ;

Korolev, Vladimir V. ;

Kazin, Pavel E. .

APPLIED PHYSICS LETTERS, 2018, 113 (11)

[9]

Gorbachev E.A., MATER

[10] Tuning the particle size, natural ferromagnetic resonance frequency and magnetic properties of ε-Fe2O3 nanoparticles prepared by a rapid sol-gel method [J].

Gorbachev, Evgeny ;

Soshnikov, Miroslav ;

Wu, Mingxi ;

Alyabyeva, Liudmila ;

Myakishev, Dmitrii ;

Kozlyakova, Ekaterina ;

Lebedev, Vasilii ;

Anokhin, Evgeny ;

Gorshunov, Boris ;

Brylev, Oleg ;

Kazin, Pavel ;

Trusov, Lev .

JOURNAL OF MATERIALS CHEMISTRY C, 2021, 9 (19) :6173-6179

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