We have developed a Co-Ni-Fe write head with a short yoke length for high-speed recording. By reducing the yoke length to 9.5 μm, the eddy currents induced in a yoke with a relatively low resistivity (0.2 μΩm) were reduced. The head of this short yoke had good write performance for a medium with a coercivity of 400 kA/m (5000 Oe) at frequencies up to 250 MHz (the overwrite less than - 30 dB, and nonlinear transition shift less than 7%).
|ジャーナル||IEEE Transactions on Magnetics|
|出版ステータス||Published - 2000 9月|
|イベント||2000 International Magnetics Conference (INTERMAG 2000) - Toronto, Ont, Canada|
継続期間: 2000 4月 9 → 2000 4月 12
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