Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1802381 | Journal of Magnetism and Magnetic Materials | 2008 | 4 Pages |
Abstract
Fe-Pt-MgO stacked storage layer constructed by [Fe-Pt/Fe-Pt-MgO/Fe-Pt] trilayered structure was proposed for a next-generation high-density perpendicular magnetic recording medium. The Fe-Pt-MgO composite middle layer was prepared by sputtering the Fe-Pt-MgO composite-type target including relatively large MgO content of 50Â vol%. The Fe-Pt(0Â 0Â 1) seed layer deposited on MgO underlayer was effective in forming the ordered fct(0Â 0Â 1) phase for the Fe-Pt-MgO composite film. The reduction of transition jitter noise and the suppression of signal overlap were observed in the stacked-type medium with the Fe-Pt-MgO middle layer of 1Â nm thickness. The improvement of recording properties is attributed to the pinning effect of magnetic domain wall by the Fe-Pt-MgO composite layer inserted into the middle of pure Fe-Pt storage layer.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Haruki Yamane,