High performance CoPtCrO single layered perpendicular media with no recording demagnetization

High performance CoPtCrO single layered perpendicular media with no recording demagnetization
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高性能 CoPtCrO 单层垂直介质，无记录退磁

DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
Yoichiro Tanaka
Yoichiro Tanaka
中科院分区：
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文献类型：
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作者：
S. Oikawa;Mikhail Amelyushkin;T. Hikosaka;Yoichiro Tanaka

文献摘要

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高矫顽力CoPtCrO单层垂直介质是为解决记录退磁问题而新研制的，具有良好的环形磁头记录特性，面记录密度大于11Gbit/in/sup~2/。高的铂含量和具有厚的富氧界的偏析结构导致这种垂直介质具有高的矫直力，在Hc处具有陡峭的磁滞回线斜率，同时也具有高的正方形。这些特征被发现是高信噪比和抑制记录退磁的主要因素。
High coercivity CoPtCrO single layered perpendicular medium has been newly developed in order to solve the recording demagnetization problem, and exhibited the excellent recording characteristics with ring type head; the areal recording density being higher than 11 Gbit/inch/sup 2/. The high Pt content and the segregation structure with thick oxygen-rich boundaries led this perpendicular medium to high coercivity, steep hysteresis slope at Hc, and high squareness at the same time. These features were found to be primary factors for both high SNR and suppressed recording demagnetization.