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

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

doi:10.1063/1.2889447

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

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

ENG - Electrical Engineering

Research output: Contribution to journal › Article

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 language	English
Article number	092501
Journal	Applied Physics Letters
Volume	92
Issue number	9
DOIs	https://doi.org/10.1063/1.2889447
Publication status	Published - 2008 Mar 14

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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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.",

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