Chip organization of bloch line memory with thermomagnetically written domain patterns

H. Asada, Kimihide Matsuyama, M. Gamachi, H. Miyoshi, K. Taniguchi

Research output: Contribution to journalConference articlepeer-review


A novel stripe domain stabilization method for Bloch line memory is proposed to simplify the stripe initiation procedure and facilitate the chip fabrication process. In this method, stripe domains are stabilized by stray magnetic fields from thermomagnetically written domain patterns (WDPs) in a perpendicular magnetization film with high coercivity, deposited on a layer supporting stripe domains. Chip organization has been studied by experiments and numerical simulation using a 5 μm bubble material. The stripe domain heads were stretched using the conductor current with the optimized WDP of 3.5 μm width and 12 μm period. Bit by bit propagation of vertical Bloch line pairs was confirmed by numerical simulations for the chip with the WDP having a fish-bone shape, which can perform both stripe stabilization and bit confinement.

Original languageEnglish
Pages (from-to)2572-2574
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number6 pt 1
Publication statusPublished - Nov 1 1993
EventProceedings of the International Magnetics Conference - Stockholm, Swed
Duration: Apr 13 1993Apr 16 1993

All Science Journal Classification (ASJC) codes

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


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