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Exchange coupled SrFe12O19/Fe-Co core/shell particles with different shell thickness

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Abstract

SrFe12O19/Fe-Co core/shell particles with different shell thickness were synthesized by polyol reduction of Fe and Co ions at 180°C with SrFe12O19 particles dispersed in solvent. The core/shell structure is formed by magnetic self-assembly due to the remanent magnetization of SrFe12O19 particles. Within a limited concentration range, the shell thickness could be controlled by regulating the concentration of Fe and Co ions. Core/shell structured SrFe12O19/Fe-Co particles showed more effective exchange coupling effects between hard and soft phases than physically mixed SrFe12O19 and Fe-Co particles.

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Authors and Affiliations

  1. Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL, 35487, USA

    Xia Xu & Alan M. Lane

  2. Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL, 35487, USA

    Yang-Ki Hong, Jihoon Park & Woncheol Lee

  3. Center for Materials for Information Technology, The University of Alabama, Tuscaloosa, AL, 35487, USA

    Xia Xu, Yang-Ki Hong, Jihoon Park, Woncheol Lee & Alan M. Lane

Authors
  1. Xia Xu
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  2. Yang-Ki Hong
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  3. Jihoon Park
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  4. Woncheol Lee
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  5. Alan M. Lane
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Correspondence to Yang-Ki Hong.

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Xu, X., Hong, YK., Park, J. et al. Exchange coupled SrFe12O19/Fe-Co core/shell particles with different shell thickness. Electron. Mater. Lett. 11, 1021–1027 (2015). https://doi.org/10.1007/s13391-015-5163-1

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  • DOI: https://doi.org/10.1007/s13391-015-5163-1

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