The Physics of the Fluctuation Field and Activatiorn Volume

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概要

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• The definition and use of the fluctuation field (H_f) and activation volume (V_<ac>) are reviewed. A simple model system of non-interacting Stoner-Wohlfarth particles is used to demonstrate the complex effect of material properties on H_f. Initial computational studies also demonstrate that interparticle interactions play an important role in determining H_f. In the case of a system with energy barriers linear in H, V_<ac> can be considered as the volume interacting with the applied field to determine the energy barrier during magnetisation reversal; a definition useful for M-O media. Finally the relationship between V_<ac> and the stability of stored information in conventional recording is discussed.

• 社団法人日本磁気学会の論文
• 1999-11-01

著者

• Coverdale G.

  School Of Electronic Engineering & Computer Systems University Of Wales Bangor

• Chantrell R.

  School of Electronic Engineering & Computer Systems, University of Wales Bangor

• Hannay J.

  School of Electronic Engineering & Computer Systems, University of Wales Bangor

• Roberts G.

  School of Mathematics, University of Wales Bangor

• Lyberatos A.

  Physics Dept., University of Crate

• Lyberatos A.

  Physics Dept. University Of Crate

• Chantrell R

  School Of Electronic Engineering & Computer Systems University Of Wales Bangor

• Roberts G.

  School Of Mathematics University Of Wales Bangor

• Chantrell Roy

  School of Electronic Engineering & Computer Systems, University of Wales Bangor

• Hannay Jonathan

  School of Electronic Engineering & Computer Systems, University of Wales Bangor

• Coverdale Geoff

  School of Electronic Engineering & Computer Systems, University of Wales Bangor

関連論文

• The Physics of the Fluctuation Field and Activatiorn Volume

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