Changes in the Magnetic Anisotropy of Co Thin Films on Pt(111) Capped by Ag Overlayers

C. W. Su, H. Y. Ho, C. S. Shern*, R. H. Chen

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

Two unusual magnetic properties were observed when Co ultrathin films on Pt(111) were capped with Ag overlayers. The perpendicular magnetic anisotropy was significantly enhanced after annealing at high temperatures, and the spin reorientation transition (SRT) could be induced by the Ag overlayers. The perpendicular magnetic anisotropy of 1 ML Ag/1-3.5 monolayers (ML) Co/Pt(111) was enhanced dramatically after Co-Pt alloy formation. The easy axis of the magnetization was reoriented from the in-plane direction to the out-of-plane direction, when Ag overlayers were deposited on 3.5-7 ML Co/Pt(111). The possible mechanisms for the magnetic anisotropy enhancement and the SRT are discussed.

原文英語
頁(從 - 到)519-527
頁數9
期刊Chinese Journal of Physics
41
發行號5
出版狀態已發佈 - 2003 十月

ASJC Scopus subject areas

  • 物理與天文學 (全部)

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