Effect of head field gradient on transition jitter in perpendicular magnetic recording
Effect of head field gradient on transition jitter in perpendicular magnetic recording
复制标题
垂直磁记录磁头场梯度对过渡抖动的影响
DOI：
10.1109/20.951010
复制
发表时间：
2001
影响因子：
2.1
通讯作者：
Y. Nakamura
中科院分区：
文献类型：
--
作者：
K. Miura;H. Muraoka;Y. Nakamura
研究了垂直双层介质中的噪声与单极磁头的磁头场的关系。时域噪声测量表明，噪声在空间上集中在跃迁周围，由跃迁抖动引起。通过对环形磁头和单极磁头的抖动测量，讨论了磁头磁场对抖动的影响。转换抖动的量与估计的写入头场梯度成反比。因此，写入头场的改善有助于降低介质噪声。
Noise of perpendicular double-layered media was investigated in connection with write head field of single pole heads. Time-domain noise measurement revealed that the noise was spatially concentrated around transitions, caused by transition jitter. The influence of writing head field was discussed based on jitter measurement using various heads; a ring head and single pole heads. The amount of transition jitter was inversely proportional to estimated writing head field gradient. The writing head field improvement, thus, contributed to reduce the medium noise.