Ordered Fe-Pt Composite Media with Fe-Si Back-Layers for High-Density Perpendicular Recording.

淑男, 鈴木; 貴則, 木谷; 直樹, 本多; 一弘, 大内

doi:10.3379/jmsjmag.24.247

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…The Fe-Si soft-magnetic underlayer had a of 1.8 T and the crystal orientation of bcc(100) caused by an MgO-seed-layer/Cr(100)-underlayer. When an MgO layer was introduced between the Fe-Pt layer and the Fe-Si layer, a square-shaped polar-Kerr loop was obtained for the Fe-Pt layer, as a result of the exchange-decoupling (E-D) between the two layers [8]. The preferred crystal orientation of fct(001) of the ordered Fe-Pt film was successfully prepared by a high gas pressure sputter-deposition method [9] and a hetero-epitaxial design of several layers.…”

Section: Introductionmentioning

confidence: 99%

High density recording on ultra-thin Fe-Pt perpendicular composite media

et al. 2000

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Ultra-thin Fe-Pt films of perpendicular composite media were studied. It was found that a preparation condition at a temperature of 375 C and introduction of an exchange-decoupling layer between the Fe-Pt layer and the soft-magnetic underlayer led to reduction of the initial growth layer of the Fe-Pt film. A 5 nm thick Fe-Pt medium exhibited a high SNR and a high recording resolution with high thermal stability.

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Section: Introductionmentioning

confidence: 99%

High density recording on ultra-thin Fe-Pt perpendicular composite media

et al. 2000

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“…16) The other was for the elimination of an interlayer exchange-coupling between the Fe-Pt and Fe-Si layers, 15) which was shown in the magnetic property for the Fe-Pt layer. As seen in Fig.…”

Section: Layer Configuration For Fe-pt(001) Mediamentioning

confidence: 99%

“…14) Furthermore, a perpendicular double-layered media construction with a soft-magnetic underlayer was also proposed. 15) Figure 1 shows a schematic drawing of the double-layered Fe-Pt medium with an Fe-Si soft-magnetic underlayer of a saturation magnetic flux density, B s , of 1.8 T as a backlayer. Each layer of this construction was heteroepitaxially stacked to realize the Fe-Pt(001) orientation, e.g., bcc(100) crystal orientations of the Cr underlayer and Fe-Si soft-magnetic underlayer were set by the MgO seed-layer with the (100) crystal orientation, as shown in Fig.…”

Section: Layer Configuration For Fe-pt(001) Mediamentioning

confidence: 99%

Nanostructured L1<SUB>0</SUB> Fe-Pt Based Thin Films for Perpendicular Magnetic Recording

Suzuki

2003

Mater. Trans.

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Aiming at development of ultra-high density magnetic recording media, nanostructured Fe-Pt perpendicular recording media were tailored. In order to obtain a crystal orientation of Fe-Pt(001) for a double-layered perpendicular medium with a soft-magnetic underlayer, a heteroepitaxial layer configuration was applied. A high pressure sputter-deposition method was effective for lowering the fct-ordering temperature of the L1 0 crystal structure. Microstructures of the media were constructed by two kinds of methods, i.e. inducing crystal defects and forming composite films with oxides. The highest SN ratio was obtained by a wall pinning type medium with the induced crystal defects. Design and possibility of the Fe-Pt(001) media were discussed.

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