کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1803175 | 1024611 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The current status and future of granular media
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The current status of CoPtCr-SiO2 granular media is briefly reviewed, and challenges relative to media technology exceeding 1Â Tb/in2 are discussed. It is effective to enhance grain isolation using oxide materials that easily precipitate at the grain boundary, and this technique is adopted in commercially available perpendicular recording media. Although some difficulties such as reduction of the grain size retaining the switching field remain, 1Â Tb/in2 could be achieved by using granular exchange-coupled composite-type media or related technologies. Discrete track media could be used for more than 1Â Tb/in2 recording. It could also take several years to further develop nano-processing technology and establish a cost-effective infrastructure. BPM offers great potential in achieving high recording density, although some necessary technologies are still too primitive to consider commercial production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 321, Issue 6, March 2009, Pages 562-565
Journal: Journal of Magnetism and Magnetic Materials - Volume 321, Issue 6, March 2009, Pages 562-565
نویسندگان
Shunji Takenoiri,