Journal Home > Volume 12 , Issue 4
Journal of Advanced Ceramics 2023, 12(4): 815-821 https://doi.org/10.26599/JAC.2023.9220722
Research Article | Open Access | Issue | Published: 13 March 2023

Anisotropic exchange coupling interaction between hard–hard magnetic grains in sintered SrFe12O19 ferrites

Show Author's Information Shuang Zhanga,  Chunxiang Caob,  Shubing Suc,  Ailin Xiaa( ),  Huiyan Zhanga,  Hailing Lia,  Zhiyuan Liua,  Chuangui Jina
School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China
Analysis and Testing Central Facility, Anhui University of Technology, Maanshan 243002, China
School of Electronic and Information Engineering, Ningbo University of Technology, Ningbo 315016, China
Keywords:
hydrothermal method, anisotropic exchange coupling interaction, Henkel plot, SrFe12O19 (SrM) ferrite
Cite this article:
Zhang S, Cao C, Su S, et al. Anisotropic exchange coupling interaction between hard–hard magnetic grains in sintered SrFe12O19 ferrites. Journal of Advanced Ceramics, 2023, 12(4): 815-821. https://doi.org/10.26599/JAC.2023.9220722
Download citation
EndNote(RIS)
BibTeX

3250

Views

553

Downloads

Citations

3

Crossref

4

WoS

5

Scopus

0

CSCD

Abstract Full text About this article

Exchange coupling interaction in sintered magnetic materials is generally isotropic. In this study, the anisotropic exchange coupling interaction was found in sintered oblate cylindrical SrFe12O19 (SrM) specimens obtained by the SrM nanopowders synthesized via a hydrothermal method. According to Henkel plots, the exchange coupling interaction between hard–hard magnetic grains was found in both as-pressed and sintered specimens. However, the exchange coupling interaction can only be found in the in-plane direction but not in the out-of-plane direction for the sintered specimens. By building a model of a grain configuration, this anisotropy of the exchange coupling interaction was ascribed to the vertically arranged plate-like SrM grains with micrometers in width but nanometers in thickness, which was confirmed by morphologies of cross sections in fractured specimens.


menu
Abstract
Full text
Outline
About this article

Anisotropic exchange coupling interaction between hard–hard magnetic grains in sintered SrFe12O19 ferrites

Show Author's information Shuang Zhanga, Chunxiang Caob, Shubing Suc, Ailin Xiaa( ), Huiyan Zhanga, Hailing Lia, Zhiyuan Liua, Chuangui Jina
School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China
Analysis and Testing Central Facility, Anhui University of Technology, Maanshan 243002, China
School of Electronic and Information Engineering, Ningbo University of Technology, Ningbo 315016, China

Abstract

Exchange coupling interaction in sintered magnetic materials is generally isotropic. In this study, the anisotropic exchange coupling interaction was found in sintered oblate cylindrical SrFe12O19 (SrM) specimens obtained by the SrM nanopowders synthesized via a hydrothermal method. According to Henkel plots, the exchange coupling interaction between hard–hard magnetic grains was found in both as-pressed and sintered specimens. However, the exchange coupling interaction can only be found in the in-plane direction but not in the out-of-plane direction for the sintered specimens. By building a model of a grain configuration, this anisotropy of the exchange coupling interaction was ascribed to the vertically arranged plate-like SrM grains with micrometers in width but nanometers in thickness, which was confirmed by morphologies of cross sections in fractured specimens.

Keywords: hydrothermal method, anisotropic exchange coupling interaction, Henkel plot, SrFe12O19 (SrM) ferrite

References(24)

[1]
Wang FY, Ji JJ, Cao CX, et al. A facile route to prepare porous M-type SrFe12O19 ferrites assisted by using carbon spheres: Structural and magnetic properties. J Phys Chem Solids 2022, 163: 110565.
DOI Google Scholar
[2]
Skomski R, Coey JMD. Giant energy product in nanostructured two-phase magnets. Phys Rev B 1993, 48: 15812–15816.
DOI Google Scholar
[3]
Almessiere MA, Slimani Y, Algarou NA, et al. Tuning the structure, magnetic, and high frequency properties of Sc-doped Sr0.5Ba0.5ScxFe12−xO19/NiFe2O4 hard/soft nanocomposites. Adv Electron Mater 2022, 8: 2101124.
DOI Google Scholar
[4]
Gao RW, Feng WC, Liu HQ, et al. Exchange-coupling interaction, effective anisotropy and coercivity in nanocomposite permanent materials. J Appl Phys 2003, 94: 664–668.
DOI Google Scholar
[5]
McKinnon T, Girt E. Exchange coupling in FeCoB/Ru, Mo/FeCoB trilayer structures. Appl Phys Lett 2018, 113: 192407.
DOI Google Scholar
[6]
Schrefl T, Fidler J, Kronmüller H. Remanence and coercivity in isotropic nanocrystalline permanent magnets. Phys Rev B 1994, 49: 6100–6110.
DOI Google Scholar
[7]
Xia AL, Zuo CH, Zhang LJ, et al. Magnetic properties, exchange coupling and novel stripe domains in bulk SrFe12O19/(Ni,Zn)Fe2O4 composites. J Phys D Appl Phys 2014, 47: 415004.
DOI Google Scholar
[8]
Li ZB, Zhang M, Shen BG, et al. Non-uniform magnetization reversal in nanocomposite magnets. Appl Phys Lett 2013, 102: 102405.
DOI Google Scholar
[9]
Kelly PE, O’Grady K, Mayo PI, et al. Switching mechanisms in cobalt–phosphorus thin films. IEEE T Magn 1989, 25: 3881–3883.
DOI Google Scholar
[10]
Chauhan CC, Gupta T, Meena SS, et al. Tailoring magnetic and dielectric properties of SrFe12O19/NiFe2O4 ferrite nanocomposites synthesized in presence of calotropis gigantea (crown) flower extract. J Alloys Compd 2022, 900: 163415.
DOI Google Scholar
[11]
Alipour A, Torkian S, Ghasemi A, et al. Magnetic properties improvement through exchange-coupling in hard/soft SrFe12O19/Co nanocomposite. Ceram Int 2021, 47: 2463–2470.
DOI Google Scholar
[12]
Sun Y, Gao RW, Han GB, et al. Effect of exchange-coupling interaction on anisotropy of grain in nanoscaled magnets. Solid State Commun 2007, 141: 156–159.
DOI Google Scholar
[13]
Xia AL, Zuo CH, Chen L, et al. Hexagonal SrFe12O19 ferrites: Hydrothermal synthesis and their sintering properties. J Magn Magn Mater 2013, 332: 186–191.
DOI Google Scholar
[14]
Xia AL, Hu XZ, Li DK, et al. Hydrothermal hexagonal SrFe12O19 ferrite powders: Phase composition, microstructure and acid washing. Electron Mater Lett 2014, 10: 423–426.
DOI Google Scholar
[15]
Izumi F, Ikeda T. A Rietveld-analysis programm RIETAN-98 and its applications to zeolites. Mater Sci Forum 2000, 321–324: 198–205.
DOI Google Scholar
[16]
Lim ES, Mun KR, Kang YM. Effect of Bi2O3, MnCO3 additives on the structure and magnetic properties of M-type Sr-hexaferrites. J Magn Magn Mater 2018, 464: 26–30.
DOI Google Scholar
[17]
Liu CC, Liu XS, Feng SJ, et al. Effect of Y–La–Co substitution on microstructure and magnetic properties of M-type strontium hexagonal ferrites prepared by ceramic method. J Magn Magn Mater 2018, 445: 1–5.
DOI Google Scholar
[18]
Kimura K, Ohgaki M, Tanaka K, et al. Study of the bipyramidal site in magnetoplumbite-like compounds, SrM12O19 (M = Al, Fe, Ga). J Solid State Chem 1990, 87: 186–194.
DOI Google Scholar
[19]
Xia AL, Zhan T, Sun R, et al. M-type SrFe12O19 ferrites obtained by using cubic or spindle-like α-Fe2O3 as Fe sources: A comparative study. J Alloys Compd 2019, 784: 276–281.
DOI Google Scholar
[20]
Zhang WR, Jian J, Chen AP, et al. Strain relaxation and enhanced perpendicular magnetic anisotropy in BiFeO3:CoFe2O4 vertically aligned nanocomposite thin films. Appl Phys Lett 2014, 104: 062402.
DOI Google Scholar
[21]
Carcia PF, Meinhaldt AD, Suna A. Perpendicular magnetic anisotropy in Pd/Co thin film layered structures. Appl Phys Lett 1985, 47: 178–180.
DOI Google Scholar
[22]
Eikeland AZ, Hölscher J, Christensen M. Hydrothermal synthesis of SrFe12O19 nanoparticles: Effect of the choice of base and base concentration. J Phys D Appl Phys 2021, 54: 134004.
DOI Google Scholar
[23]
Herzer G. Grain size dependence of coercivity and permeability in nanocrystalline ferromagnets. IEEE T Magn 1990, 26: 1397–1402.
DOI Google Scholar
[24]
Xia AL, Ren SZ, Lin JS, et al. Magnetic properties of sintered SrFe12O19–CoFe2O4 nanocomposites with exchange coupling. J Alloys Compd 2015, 653: 108–116.
DOI Google Scholar
Publication history
Copyright
Acknowledgements
Rights and permissions

Publication history

Received: 23 September 2022
Revised: 30 December 2022
Accepted: 19 January 2023
Published: 13 March 2023
Issue date: April 2023

Copyright

© The Author(s) 2023.

Acknowledgements

We thank for Prof. Qing’an Zhang and his Ph.D. student Cong Peng for the help of the Rietveld refinement. This study was supported by the National Natural Science Foundation of China (Grant No. 51772004).

Rights and permissions

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Return