Highly stable FeCo/carbon composites: Magnetic properties and microwave response

M. H. Xu*, W. Zhong, Z. H. Wang, Chak Tong AU, Y. W. Du

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Highly steady composites of FeCo alloy and carbon nanotubes have been synthesized by in situ catalytic decomposition of benzene over FeCo alloy nanoparticles generated through procedures of sol-gel fabrication and hydrogen reduction. Magnetic measurement indicates that the coercivity (HC) increases with the rise of Co concentration and the saturation magnetization (MS) rises in the order of FeCo13@C<FeCo31@C<FeCo22@C. The complex permittivity and permeability of the composites indicates that the maximum reflection loss (RL) is -6.7 dB at 11.1 GHz at thickness of 1.5 mm for FeCo13@C, and as well as the electromagnetic wave absorption properties can be tuned by adjusting the composition of FeCo alloy and the absorption layer thickness.

Original languageEnglish
Pages (from-to)14-20
Number of pages7
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume52
DOIs
Publication statusPublished - 2013

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

User-Defined Keywords

  • Composite
  • Electromagnetic wave absorption
  • FeCo alloy
  • Magnetism

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