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No.3(pp.69-95)

Home > Issues > Volume 9 (2004) > No.3(pp.69-95)

High Resolution Magnetic X-ray Microscopy Study of the Magnetization Reversal in CoCrPt Alloy Thin Films

Journal of Magnetics, Volume 9, Number 3, 30 Sep 2004, Pages 75-78

Mi-Young Im*

(Department of Physics and Center for Nanospinics of Spintronic Materials, Korea Advanced Institute of Science and Technology), Peter Fischer(Max-Planck-Institute for Metals Research), Thomas Eimiiller(Max-Planck-Institute for Metals Research), Sung-Chul Shin(Department of Physics and Center for Nanospinics of Spintronic Materials, Korea Advanced Institute of Science and Technology)

Abstract

Magnetic transmission soft X-ray microscopy has been used to study element-specifically the magnetization reversal behavior of (Co₈₄Cr₁₆)₈₇Pt₁₃alloy thin films with a lateral resolution of 35 nm. Our results indicate that the magnetization switching is carried out by a random nucleation process that can be attributed to the reversal of 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 magnetic high density storage materials.

Keywords: nanogranular CoCrPt films; magnetization reversal; magnetic X-ray microscopy; perpendicular magnetic recording

DOI:

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