Occupation and Magnetic Property of Cr Additive in L10 FePt: First-Principle Study

Da Song Shu; Xiao Lin Shu; Zi Yu Chen

doi:10.4028/www.scientific.net/MSF.689.235

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HomeMaterials Science ForumMaterials Science Forum Vol. 689Occupation and Magnetic Property of Cr Additive in...

Occupation and Magnetic Property of Cr Additive in L1₀ FePt: First-Principle Study

Abstract:

The preference site and magnetic property of doped Cr atom in L1₀ FePt alloy are investigated by the first-principles calculations. Due to the energy of Cr located in Fe and Pt sublattice are -0.15 and 0.48 eV, respectively, the Cr atom occupying Fe site is more energetic favorable than in Pt site in L1₀ FePt alloy. The calculated saturation magnetizations for Cr additive replacing Fe or Pt atom in L1₀ FePt are 959 or 989 emu/cm³, respectively. The results are lower than that of L1₀ FePt (1085emu/cm³). The additive of Cr in L1₀ FePt will reduce the saturation magnetization.

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Materials Science Forum (Volume 689)

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235-238

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https://doi.org/10.4028/www.scientific.net/MSF.689.235

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Online since:

June 2011

Authors:

Da Song Shu, Xiao Lin Shu, Zi Yu Chen

Keywords:

Cr Additive, First-Principle, L1₀ FePt, Saturation Magnetisation

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