M-H Loop Analysis in MP Tape with Accurate Calculation of Magnetostatic Interaction

Peng ZHOU  Dan WEI  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E85-C   No.10   pp.1766-1770
Publication Date: 2002/10/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Recent Progress in Information Storage Technology)
Category: 
Keyword: 
MP tape,  magnetostatic interaction,  M-H loop,  micromagnetic simulation,  

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Summary: 
Metal particulate tape is one of the most advanced tape media to offer excellent performance at high recording densities. An accurate micromagnetic model of the metal particulate tape has been developed to analyze the magnetic properties of MP tapes. Both particle size distributions and orientation distribution are included in the model, and the magnetostatic interactions among particles are accurately calculated with the shape of ellipsoids. A partial mean field approximation applied in the calculation is proved to be effective by M-H loop analysis.