Advanced optimization of standard head model with higher writing field and higher field gradient using 3-D ON/OFF method

Norio Takahashi; Koji Akiyama; Daisuke Miyagi; Yasushi Kanai

doi:10.1109/TMAG.2007.916487

Advanced optimization of standard head model with higher writing field and higher field gradient using 3-D ON/OFF method

Norio Takahashi, Koji Akiyama, Daisuke Miyagi, Yasushi Kanai

ENG - Electrical Engineering

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

A magnetic recording head for 600 Gb/in² with a gh recording head field, which is called a "standard model," is proposed after deep consideration by utilizing the numerical analysis. In order to improve the topology of the having a higher writing field and higher field gradient, the introduction of a 3-D topology optimization method, which is called the "ON/OFF method", is indispensable. In this paper, an advanced topology of the standard head model is obtained using the ON/OFF method. The recording field of 1.7 T and the field gradient of 0.0314 T/nm with low stray field of 0.1 T at the center of an adjacent track are obtained. The leakage flux in the adjacent track, which is the cause of the crosstalk, is reduced to 50%, which is the most significant improvement.

Original language	English
Article number	4527007
Pages (from-to)	966-969
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	44
Issue number	6
DOIs	https://doi.org/10.1109/TMAG.2007.916487
Publication status	Published - 2008 Jun 1

Keywords

Finite-element analysis
Magnetic recording head
Topology optimization

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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Takahashi, N., Akiyama, K., Miyagi, D., & Kanai, Y. (2008). Advanced optimization of standard head model with higher writing field and higher field gradient using 3-D ON/OFF method. IEEE Transactions on Magnetics, 44(6), 966-969. [4527007]. https://doi.org/10.1109/TMAG.2007.916487

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