Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Influence of Working Pressure on The Magnetic Properties of Tb(Fe0.55Co0.45)1.5 Thin Films

  • Tu, Le Tuan (Department of Materials Science and Engineering, Chungnam National University) ;
  • Duc, Nguyen Huu (Laboratory for Nano Magnetic Materials and Devices, College of Technology, Vietnam National University) ;
  • Jeong, Jong-Ryul (Department of Materials Science and Engineering, Chungnam National University) ;
  • Kim, Cheol-Gi (Department of Materials Science and Engineering, Chungnam National University)
  • Published : 2008.12.31
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Abstract

In this work the magnetic anisotropies of magnetostriction material $Tb(Fe_{0.55}Co_{0.45})_{1.5}$ (named a-TerfecoHan) films were investigated with respect to working pressures in the range 1-7 mTorr. The results obtained show that perpendicular magnetic anisotropy (PMA) can be obtained at a working pressure above 5.1 mTorr. XRD was utilized to clarify the origin of the PMA observed in $Tb(Fe_{0.55}Co_{0.45})_{1.5}$ films, and revealed that all samples were amorphous. Therefore, we propose that the PMA effect is explained by stress produced in film due to internal relaxation process and magnetic anisotropy enhancements caused by magnetoelastic interactions.

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References

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