Magnetocrystalline anisotropy energy and spin polarization of Fe 3Si in bulk and on Si(001) and Si(111) substrates

  • Odkhuu D
  • Yun W
  • Hong S
  • 6


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.


In order to achieve highly efficient spin polarized transport, first of all magnetocrystalline anisotropy energy, which determines the magnetic easy axis, must be understood. The highly precise full-potential linearized augmented plane-wave method is employed to investigate the magnetism and magnetocrystalline anisotropy energy of a ferromagnetic Heusler alloy Fe 3Si on Si(001) and Si(111) substrates. The calculated magnetocrystalline anisotropy energy of bulk D0 3 Fe 3Si was found to depend sensitively on a tetragonal distortion: The magnetization is along the z-axis at c/a < 1 and on the xy plane at c/a > 1. The out-of-plane magnetic easy axis of both Fe 3Si/Si(001) and (111) was calculated to be quite stable with enhanced magnetocrystalline anisotropy energy compared with bulk value. The magnetic easy axis of Fe 3Si/Si(001) and (111) is discussed in detail with single particle energy spectra. The degree of spin polarization is also presented at the interfaces between Fe 3Si and Si. The calculated spin polarizations of Fe 3Si/Si(111) tend to retain the spin polarization of the bulk, whereas they are reduced for the (001) interfaces. ?? 2011 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • 3Si
  • Density of states
  • Fe
  • Magnetocrystalline anisotropy
  • Spin polarization
  • Spintronics
  • Surface/interface

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Dorj Odkhuu

  • Won Seok Yun

  • Soon Cheol Hong

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free