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http://dx.doi.org/10.4283/JMAG.2008.13.4.160

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)
Publication Information
Journal of Magnetics / v.13, no.4, 2008 , pp. 160-162 More about this Journal
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.
Keywords
magnetostriction; perpendicular magnetic anisotropy; magnetoelastic; TbFeCo;
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