Microstructure and magnetic properties of CoFeHfO rich nanocrystalline thin films application for high frequency

L. V. Tho, K. E. Lee, C. G. Kim, C. O. Kim, W. S. Cho

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Nanocrystalline CoFeHfO thin films have been fabricated by RF sputtering method. Co52Fe23Hf10O15 thin film is observed, exhibit good magnetic properties with magnetic coercivity (H c) of 0.18 Oe; anisotropy fild (Hk) of 49 Oe; saturation magnetization (4πMs) of 21 kG, and electrical resistivity (ρ) of 300 μΩcm. The frequency response of permeability of the film is excellent. The effect of microstructure on the electrical and magnetic properties of thin film was studied using X-ray diffraction (XRD) analysis and conventional transmission electron microscopy (TEM). The results showed that excellent soft magnetic properties were associated with granular nannoscale grains of α-CoFe and α-Co(Fe) phases.

Original languageEnglish
Title of host publicationRecrystallization and Grain Growth III - Proceedings of the Third International Conference on Recrystallization and Grain Growth, ReX and GG III
PublisherTrans Tech Publications Ltd
Pages975-978
Number of pages4
EditionPART 2
ISBN (Print)087849443X, 9780878494439
DOIs
StatePublished - 2007
Event3rd International Conference on Recrystallization and Grain Growth, ReX GG III - Jeju Island, Korea, Republic of
Duration: 10 Jun 200715 Jun 2007

Publication series

NameMaterials Science Forum
NumberPART 2
Volume558-559
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference3rd International Conference on Recrystallization and Grain Growth, ReX GG III
Country/TerritoryKorea, Republic of
CityJeju Island
Period10/06/0715/06/07

Keywords

  • Magnetic properties
  • Microstructure
  • Nanocrystalline

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