Publication date: 31 March 2016
Source:Thin Solid Films, Volume 603
Author(s): Takayuki Kojima, Masaki Mizuguchi, Koki Takanashi
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 (K u ) of over 0.1K u 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 K u . 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.
Source:Thin Solid Films, Volume 603
Author(s): Takayuki Kojima, Masaki Mizuguchi, Koki Takanashi