Permittivity and permeability of Fe(Tb) nanoparticles and their microwave absorption in the 2-18 GHz range

Z. Han, D. Li, M. Tong, X. Wei, R. Skomski, W. Liu, Z. D. Zhang, David J Sellmyer

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The permittivity and permeability of the Tb-doped and undoped Fe core-shell nanoparticles were investigated for frequencies from 2 to 18 GHz. The particles were synthesized by arc discharge and contain some oxygen, probably in the form of Fe2 O3, Fe3 O3, and Tb 2 O3, whereas the core material is Fe. Both the electromagnetic materials constants and the morphology of the Fe nanoparticles are changed by Tb addition, which gives rise to the shifts to higher frequencies and thinner thicknesses of the maximum microwave absorption in the Tb-doped Fe nanoparticles.

Original languageEnglish (US)
Article number09A929
JournalJournal of Applied Physics
Volume107
Issue number9
DOIs
StatePublished - May 1 2010

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microwave absorption
permeability
permittivity
nanoparticles
arc discharges
electromagnetism
shift
oxygen

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Permittivity and permeability of Fe(Tb) nanoparticles and their microwave absorption in the 2-18 GHz range. / Han, Z.; Li, D.; Tong, M.; Wei, X.; Skomski, R.; Liu, W.; Zhang, Z. D.; Sellmyer, David J.

In: Journal of Applied Physics, Vol. 107, No. 9, 09A929, 01.05.2010.

Research output: Contribution to journalArticle

Han, Z. ; Li, D. ; Tong, M. ; Wei, X. ; Skomski, R. ; Liu, W. ; Zhang, Z. D. ; Sellmyer, David J. / Permittivity and permeability of Fe(Tb) nanoparticles and their microwave absorption in the 2-18 GHz range. In: Journal of Applied Physics. 2010 ; Vol. 107, No. 9.
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