Oxidation processes in magneto-optic and related materials

Paul A. Lee, Neal R. Armstrong, James L. Danziger, Craig D. England

Research output: Contribution to journalConference articlepeer-review


The surface oxidation processes of thin films of magneto-optic materials, such as the rareearth transition metal alloys have been studied, starting in ultrahigh vacuum environments, using surface analysis techniques, as a way modeling the oxidation processes which occur at the base of a defect in an overcoated material, at the instant of exposure to ambient environments. Materials examined have included FeTbCo alloys, as well as those same materials with low percentages of added elements, such as Ta, and their reactivities to both O2 and H2O compared with materials such as thin Fe films coated with ultrathin adlayers of Ti. The surface oxidation pathways for these materials is reviewed, and XPS data presented which indicates the type of oxides formed, and a critical region of Ta concentration which provides optimum protection.

Original languageEnglish (US)
Pages (from-to)387-396
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1992
Externally publishedYes
EventOptical Data Storage Topical Meeting 1992 - San Jose, United States
Duration: Feb 9 1992Feb 14 1992

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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