Magnetization reversal study of CoCrPt alloy thin films on a nanogranular-length scale using magnetic transmission soft x-ray microscopy

Mi-Young Im, S. P.; Fischer, Peter; Eimüller, Thomas; Denbeaux, Greg; Sung-Chul Shin
December 2003
Applied Physics Letters;12/1/2003, Vol. 83 Issue 22, p4589
Academic Journal
We have investigated element-specific magnetization reversal behavior of (Co[sub 83]Cr[sub 17])[sub 87]Pt[sub 13] alloy thin films with a lateral resolution of 35-nm using magnetic transmission soft x-ray microscopy. We report that the magnetization switching is carried out by a random nucleation process that can be attributed to individual grains. We found evidence of a large distribution of the switching fields at the nanogranular-length scale, which has to be considered seriously for applications of CoCrPt systems as high-density magnetic storage materials. © 2003 American Institute of Physics.


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