Oxygen adsorption and magnetic properties of ultrathin Co/Ir(111) films

Huei Ying Ho, Jyh Shen Tsay, Yu Shan Chen

研究成果: 雜誌貢獻文章

摘要

During oxygen exposure to ultrathin Co/Ir(111) films, both the oxidative process and physical adsorption occur. The diffusion length of oxygen is around two monolayers of Co. Within this thickness, Co films are almost oxidative and ferromagnetism disappears. For thicker films with nanometer thickness, after completing the oxidative process at the beginning of oxygen exposure, the physical adsorption becomes a major process. By controlling the amount of further exposure to oxygen, the coercive force in the polar configuration can be adjusted while keeping the Kerr rotation at a nearly constant value.

原文英語
頁(從 - 到)758021-758024
頁數4
期刊Japanese Journal of Applied Physics
49
發行號7 PART 1
DOIs
出版狀態已發佈 - 2010 七月 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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