Relaxation time and thermal stability in magneto-optical recording media

被引：6

作者：

Sbiaa, R ^{[1
]}

Mochida, M ^{[1
]}

Itoh, Y ^{[1
]}

Suzuki, T ^{[1
]}

机构：

[1] Minist Educ, Toyota Technol Inst, Acad Frontier Ctr Future Data Storage Mat Res, Informat Storage Mat Lab,Tempaku Ku, Nagoya, Aichi 4688511, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2000年 / 36卷 / 05期

关键词：

activation volume; magnetic viscosity; relaxation time; thermal stability;

D O I：

10.1109/20.908393

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this study, the time dependence of the magnetization process in amorphous TbFeCo thin films and (TbFeCo/Pt) multilayers is studied. By assuming a Gaussian distribution of relaxation times for magnetic aftereffect, the non-Arrhenius behavior of the magnetization decay is found in almost all of samples. From a fitting of experimental data one can determine the mean value of relaxation time tau (0) and also its width Delta tau (0). The multilayers of TbFeCo/Pt show a high stability compared to single layers of TbFeCo with also a small activation volume.

引用

页码：2279 / 2281

页数：3

共 9 条

[1] Magnetic domain expansion readout for amplification of an ultra high density magneto-optical recording signal [J].