Translational positioning of a magnetic domain wall in ferromagnetic nanowires using a stray field filter

H. G. Piao, Dede Djuhana, J. H. Shim, S. H. Lee, S. C. Yu, S. K. Oh, S. M. Ahn, S. B. Choe, D. H. Kim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Understanding the interaction between the magnetic domain wall and the various artificial defects in ferromagnetic nanowires has been of utmost importance for the future realization of the spintronic devices based on the magnetic domain wall motion in nano towires. In this work, the chirality filter effect of the magnetic domain wall in T-shaped ferromagnetic nanowires with a stray field filter was investigated via micromagnetic simulation. A tapered wire was attached to the flat nanowires to form a potential barrier or well for the domain wall propagating along them. For the domain wall passing through the potential barrier or the potential well, the spin structure of the domain wall and the interaction between the domain wall and the potential barrier/well were investigated in detail. The chirality-dependent translational positioning of the domain wall was intensively examined for the potential barrier and potential well cases. The domain wall chirality transmission on relatively long length scales using a series of potential wells was explored.

Original languageEnglish
Pages (from-to)6122-6125
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume11
Issue number7
DOIs
Publication statusPublished - 1 Jul 2011

Keywords

  • Domain Wall Dynamics
  • Domain Wall Fidelity
  • Ferromagnetic Nanowire
  • Magnetic-Chirality Filter

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