High-frequency ferromagnetic properties of FeCoZr nanocrystalline films

Yung Wang Peng, Shandong Li, Kai Xin Liu, Jenq Gong Duh, Masahiro Yamaguchi

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


FeCoZr magnetic thin films with high uni-axial anisotropy were fabricated by RF co-sputtering followed by post magnetic annealing. The crystal size of FeCoZr films was less than 15 nm, as calculated by Scherrer equation from X-ray diffraction patterns. By adding Zr element, FeCoZr films exhibited a uni-axial anisotropy after magnetic field annealing at 400°C for 1 hr. Optimal high frequency ferromagnetic properties were achieved in film with 19 at.% Zr, in which strong uni-axial anisotropy field of 300 Oe and high ferromagnetic resonance frequency in excess of 5.2 GHz were obtained. These facts suggest that FeCoZr nano-crystalline film is a potential candidate in high frequency electromagnetic devices operating at GHz bands.

Original languageEnglish
Pages (from-to)4593-4597
Number of pages5
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Issue number12
Publication statusPublished - 2007
EventInternational Symposium on Advanced Magnetic Materials and Appilications, (ISAMMA 2007) - Jeju, Korea, Republic of
Duration: 2007 May 282007 Jun 1


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