Ion implantation of magnetic thin films and nanostructures

Dmitri Litvinov, Jack C. Wolfe, Erik B. Svedberg, Thomas Ambrose, Kent Howard, Fang Chen, T. E. Schlesinger, Sakhrat Khizroev

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

This work presents a study of Ga + ion implantation of polycrystalline hep cobalt thin films and nanostructures. It is shown that Ga + ion implantation leads to a substantial modification of magnetic properties including large coercivity increase and shearing of in-plane magnetization loops suggesting the introduction of domain wall pinning sites and the reduction of intergranular exchange coupling. Because ion implantation can be accompanied by substantial heat dissipation, it is discussed how the annealing effects can be minimized. Application of ion implantation to selectively tailor properties of magnetic nanostructures is demonstrated.

Original languageEnglish (US)
Pages (from-to)128-132
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume283
Issue number1
DOIs
StatePublished - Nov 2004

Keywords

  • Ion implantation
  • Magnetic recording
  • Nanomagnetics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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