High-density recording capability of granular media composed of Co-Pt grains and SiO/sub 2/ matrix
High-density recording capability of granular media composed of Co-Pt grains and SiO/sub 2/ matrix
复制标题
Co-Pt颗粒和SiO/sub 2/基体组成的颗粒介质的高密度记录能力
DOI：
10.1109/20.706629
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发表时间：
1998
影响因子：
2.1
通讯作者：
H. Ogiwara
中科院分区：
文献类型：
--
作者：
K. Ichihara;A. Kikitsu;K. Yusu;F. Nakamura;H. Ogiwara
在Cr种子层上制备了Co-Pt和SiO/sub 2/颗粒膜。Co-Pt颗粒分散在SiO/sub 2/基体中。锥形晶粒生长与铬层和球形晶粒生长之间的锥形。当矫顽力为0.4memu/cm/sup 2/时，矫顽力超过2kOe，矫顽磁力矩达到0.7左右。活化磁矩为10/sup-15/ emu，热稳定性指数约为100。误码率保持低于10/sup-5/高达280 kfci的线密度。在1 /spl μ/m的磁道宽度上的记录图形清晰可见。Co-Pt和SiO/sub 2/颗粒介质具有5Gb/in/sup 2/记录的潜力。
Co-Pt and SiO/sub 2/ granular films were prepared on a Cr seed layer. Co-Pt grains dispersed in the SiO/sub 2/ matrix discretely. Conical grains grew in contact with the Cr layer and spherical grains grew between the conical ones. Coercivity exceeded 2 kOe and coercive squareness reached about 0.7 at a remanent magnetic moment of 0.4 memu/cm/sup 2/. Activating magnetic moment was 10/sup -15/ emu and the index of the thermal stability was about 100. Bit error rate was held below 10/sup -5/ up to a linear density of 280 kfci. The recording pattern at the track width of 1 /spl mu/m was clearly visible. The Co-Pt and SiO/sub 2/ granular media have potential for 5 Gb/in/sup 2/ recording.