Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Surface Relaxation Effect on the Magnetism of Fe Overlayer on Cr (001)

  • Kim, I.G. (Inha University) ;
  • Lee, J.I. (Inha University) ;
  • Jang, Y.R. (Department of Physics, University of Inchon) ;
  • Hong, C.S (Univeristy of Ulsan)
  • Published : 1996.06.01
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Abstract

The effects of surface relaxation on surface and interface magnetism in Fe/Cr (001) are investigated using the highly precise all-electron total-energy full-potential linearized augmented plane wave method. The Fe-Cr interlayer spacing is deter-mined by total-energy calculation and it is found to be relaxed downward by 18%. For the relaxed system, the magnetic moment of surface Fe is highly suppressed to be $1.72\mu_B$compared to the unrelaxed case ($2.39\mu_B$). This reduction of magnetic moment is considered as a result of the enhanced hybridization between Fe-d and Cr-d states, which can be seen from the calculated density of states. This work suggests the importance of effect of relaxation to the surface and interface magnetism in Fe/Cr system.

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References

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