Relaxation time and thermal stability in magneto-optical recording media

Rachid Sbiaa, Mitsunori Mochida, Yusuke Itoh, Takao Suzuki

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


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 τ0 and also its width Δτ0. The multilayers of TbFeCo/Pt show a high stability compared to single layers of TbFeCo with also a small activation volume.

Original languageEnglish
Pages (from-to)2279-2281
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - Sept 2000
Externally publishedYes


  • Activation volume
  • Magnetic viscosity
  • Relaxation time
  • Thermal stability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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