Spin-stand measurements of time and temperature dependence of magnetic recordings

被引：18

作者：

Dhagat, P ^{[1
]}

Indeck, RS ^{[1
]}

Muller, MW ^{[1
]}

机构：

[1] Washington Univ, Magnet & Informat Sci Ctr, St Louis, MO 63130 USA

来源：

JOURNAL OF APPLIED PHYSICS | 1999年 / 85卷 / 08期

关键词：

D O I：

10.1063/1.370069

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Spin-stand experiments were performed to study the effect of temperature and demagnetizing fields on the stability of magnetic recordings. Tracks of varying linear bit densities were written on a low M(r)delta medium that was heated in situ to different temperatures. The readback amplitude, which reflects the changes in the magnetization of the recordings, was observed from 32 ms to 12 h after the tracks were written. The readback amplitude was found to decay with time. The rate of decay increased at higher densities due to higher demagnetizing fields. A further increase in the decay rate was observed at higher temperatures. This increase in decay rate exceeded that predicted by proportional temperature scaling. (C) 1999 American Institute of Physics. [S0021-8979(99)62108-9].

引用

页码：4994 / 4996

页数：3

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