Ultrahigh-frequency ferromagnetic properties of FeCoHf films deposited by gradient sputtering

Shandong Li, Zhigao Huang, Jenq Gong Duh, Masahiro Yamaguchi

Research output: Contribution to journalArticle

138 Citations (Scopus)

Abstract

Nanocrystalline FeCoHf films with Hf composition gradient were prepared by gradient sputtering method at room temperature. A uniaxial magnetic anisotropy with high anisotropy field Hk up to 547 Oe was achieved after magnetic annealing with external field along the gradient direction. Ultrahigh ferromagnetic resonance frequency over 7 GHz was obtained in magnetic annealed gradient sputtered films. The origin of ultrahigh ferromagnetic properties in gradient sputtered films is discussed.

Original languageEnglish
Article number092501
JournalApplied Physics Letters
Volume92
Issue number9
DOIs
Publication statusPublished - 2008 Mar 14

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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