Mechanism of 90° wall motion in thin film heads

Keishi Ohashi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


The interaction between the rotational motion of magnetization and wall movement are investigated for an infinite strip of magnetic film with closure domains. When an external field is applied, the direction of magnetization is assumed to curl parabollicaly near the 90° walls. The 90° wall will move to decrease the energy associated with this curling. This movement can be described by the equation of rotational motion for the wall. The switching time relating to a 90° wall is fairly short (6 - 18 nsec) calculated by solving the equation of motion. It, is due to the acceleration of the wall movement by the magnetization rotation.

Original languageEnglish
Pages (from-to)1581-1583
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - 1985 Sept
Externally publishedYes

ASJC Scopus subject areas

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


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