Optimum Design Consideration for Dual Conductor Bubble Devices

Kimihide Matsuyama, Haruo Urai, Koichi Yoshimi

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

A design for dual conductor, current-access bubble devices with 8-μm periods has been optimized with a numerical calculation method for bubble motion in a propagating magnetic field, generated around hole patterns in conductor layers. Magnetic bias field distributions are calculated for an oval hole chain in the conductor layers. Bubble motion equations are obtained with analytical field distribution functions approximating the calculated field distributions. Minimum drive current density Jmin for normal bubble propagation is determined by a solution to the equations. The hole shape has been optimized by the minimization of the drive power the product of jmin and conductor resistance, which is calculated from current distributions around the hole pattern. Optimum layer thicknesses have also been obtained for 8μm period bubble devices. Both registration tolerance between the two conductor layers and bubble skew effects have been studied semiquantitatively on the basis of the equations of motion. The numerical calculation method developed here is found to be a highly effective means to optimize pattern design for smaller period devices.

本文言語英語
ページ(範囲)111-119
ページ数9
ジャーナルIEEE Transactions on Magnetics
19
2
DOI
出版ステータス出版済み - 3 1983

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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