Title :
Nanostructure and chemical inhomogeneity in TbFe magneto-optical films
Author :
Kim, Soon Gwang ; Bow, J.S. ; Carpenter, R.W. ; Liu, J. ; Soon Gwang Kim ; Lee, Seh Kwang ; Won Mok Kim ; Yoon, Jong Shik
Author_Institution :
Center for Solid State Sci., Arizona State Univ., Tempe, AZ, USA
Abstract :
High spatial resolution chemical imaging results provided the first direct experimental evidence illustrating nanosegregation in thin films of sputtered Tb-Fe alloys. The observed chemical segregation appeared to result from the initial nucleation and growth of stable Fe-rich amorphous phase. The measured properties such as local fluctuation and magnetization reversal processes are explained on the basis of this chemical segregation effect.<>
Keywords :
amorphous magnetic materials; electron microscopy; ferromagnetic materials; iron alloys; magnetic multilayers; magnetisation reversal; magneto-optical effects; nanostructured materials; nucleation; segregation; sputtered coatings; terbium alloys; TbFe; chemical imaging; chemical inhomogeneity; chemical segregation effect; initial nucleation; local fluctuation; magnetization reversal processes; magneto-optical films; nanosegregation; nanostructure; sputtered Tb-Fe alloys; stable Fe-rich amorphous phase; Amorphous materials; Chemicals; Fluctuations; Magnetic films; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Saturation magnetization; Silicon; Spatial resolution; Sputtering;
Journal_Title :
Magnetics, IEEE Transactions on
