Relaxation time and thermal stability in magneto-optical recording media

R. Sbiaa, M. Mochida, Y. Itoh, T. Suzuki

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

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
Volume36
Issue number5 I
DOIs
Publication statusPublished - Sep 2000

Keywords

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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

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