Coercivity exceeding 100 kOe in epltaxially grown FePt sputtered films

T. Shima, K. Takanashi, Y. K. Takahashi, K. Hono

Research output: Contribution to journalArticlepeer-review

209 Citations (Scopus)

Abstract

The magnetization process and microstructure of FePt (001) films with large perpendicular magnetic anisotropy were analyzed. The sample films were synthesized by co-sputtering Pt and Fe directly onto heated single crystalline MgO (001) substrates using a high vacuum multiple dc-sputtering system. The structural characteristics of the films were investigated using transmission electron microscopy and x-ray diffraction with Cu-Kα radiation. The results show that the value of uniaxial magnetic anisotropy is constant although the magnetic domain structure changes from single-to multidomain state, and thus show that magnetization process depends on the film morphology.

Original languageEnglish
Pages (from-to)2571-2573
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number13
DOIs
Publication statusPublished - 2004 Sep 27
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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