Perpendicular Magnetic Recording Focused on the Origin and Its Significance

Shun-ichi Iwasaki

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Perpendicular Magnetic Recording Focused on the Origin and Its Significance

机译：Perpendicular Magnetic Recording Focused on the Origin and Its Significance

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The speculations and discoveries that guided the beginning of perpendicular magnetic recording are described in this paper. Four important discoveries of the existence of perpendicular magnetization, the Co-Cr film, the effect of double-layered medium, and the complementary relationship are described in detail. The studies on thin-film media and recording mechanisms at short wavelengths in the 1960s led to the realization of the new perpendicular magnetic recording through these discoveries. None of this work was on any list of research goals in the 1960s. The historical view of the development of magnetic recording is also discussed. It was deduced that an invention needs more than 20 years before its worldwide application and that major technological innovations take place with a period of about 40 years.

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来源
《IEEE Transactions on Magnetics》 |2002年第4期|1609-1614|共6页
作者
Shun-ichi Iwasaki;
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作者单位

Tohoku Institute of Technology, Sendai 982-8577, Japan;

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原文格式 PDF
正文语种英语
中图分类磁性材料、铁氧体;
关键词
Co-Cr film; complementary relationship; doublelayered medium; guided discoveries; historical view; perpendicular magnetic recording; perpendicular magnetization;

Perpendicular Magnetic Recording Focused on the Origin and Its Significance

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