Effect of various single metallic seed-layers on the magnetic properties of Co/Pd multilayers

Sangho Lee, Sanghoon Kim, Jaeyong Kang, Jongill Hong

Research output: Contribution to journalArticle

Abstract

We studied the effects of Pd, Ru, and Ta seed-layers on the perpendicular magnetic properties of Co/Pd multilayers, promising materials for high-density magnetic recording media. Among the various seeds, the Ta seed-layer demonstrated a large coercivity and most highly promoted fcc (111) preferred orientation of the Co/Pd multilayer. We also patterned films into island arrays with sizes of 2 × 2 μm2, 5 × 5 μm2, and 10 × 10 μm2 to investigate the effect of size on the magnetic properties. The coercivity increased as the island size decreased. The 2 × 2 μm2 patterned Co/Pd multilayer with the Ta seed-layer showed a coercivity about six times greater than that of the un-patterned film. This increase can be explained by a change in the magnetization reversal mechanism from domain wall propagation to domain rotation.

Original languageEnglish
Pages (from-to)8363-8366
Number of pages4
JournalThin Solid Films
Volume519
Issue number23
DOIs
Publication statusPublished - 2011 Sep 30

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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