Memoirs of the Faculty of Engineering, Yamaguchi University

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Memoirs of the Faculty of Engineering, Yamaguchi University Volume 33 Issue 1
published_at 1982

Fundamental Properties of AC-Biased Digital Magnetic Recording

AC バイアス・ディジタル磁気記録の基礎的性質
Nishikawa Masaaki
Yokoyama Masayuki
Kirihara Akio
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The amplitude and pulse width of isolated read signal from AC-biased digital magnetic recording were examined and the results were compared to the behavior of medium residual flux. The combination of write signal and ac-bias current level (I_w, I_b) divides write operation range of magnetization into three regions : initial magnetization, over-bias demagnetization and over saturation regon. In initial magnetization and over saturation region, amplitude and pulse width of isolated read signal are both determined by the sum of I_w and I_b
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