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Home > Issues > Volume 13 (2008) > No.4(pp.115-181)Influence of Working Pressure on The Magnetic Properties of Tb(Fe0.55Co0.45)1.5 Thin Films
Journal of Magnetics, Volume 13, Number 4, 31 Dec 2008, Pages 160-162
Le Tuan Tu(Department of Materials Science and Engineering, Chungnam National University), Nguyen Huu Duc(Laboratory for Nano Magnetic Materials and Devices, College of Technology, Vietnam National University), Jong-Ryul Jeong(Department of Materials Science and Engineering, Chungnam National University), Cheol-Gi Kim* 
(Department of Materials Science and Engineering, Chungnam National University)
(Department of Materials Science and Engineering, Chungnam National University)
Abstract
In this work the magnetic anisotropies of magnetostriction material Tb(Fe0.55Co0.45)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(Fe0.55Co0.45)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
DOI: 10.4283/JMAG.2008.13.4.160
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