Growth of L10-FeNi thin films on Cu(001) single crystal substrates using oxygen and gold surfactants

Takayuki Kojima, Masaki Mizuguchi, Koki Takanashi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We alternately deposited Ni and Fe monatomic layers on Cu(001) single crystal substrates and also performed surfactant-mediated growth. FeNi films exhibited a large uniaxial magnetic anisotropy (Ku) of over 0.1 MJ/m3 by using an oxygen or a gold surfactant, although Ku was almost zero without surfactants. Reflection high-energy electron diffraction and atomic force microscopy indicated surfactant effects of oxygen and gold. Synchrotron X-ray diffraction indicated a formation of an L10-type ordered FeNi phase having a large Ku. We have considered that the surfactants enhanced layer-by-layer growth leading to the L10-ordering by changing a diffusion scenario of Fe and Ni atoms.

Original languageEnglish
Pages (from-to)348-352
Number of pages5
JournalThin Solid Films
Volume603
DOIs
Publication statusPublished - 2016 Mar 31

Keywords

  • L1-FeNi
  • Magnetic anisotropy
  • Noble metal free
  • Rare-earth free
  • Surfactant

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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