Magnetic properties of Co/Ge(111) films: Effects of growth temperatures

Jyh-Shen Tsay, Y. T. Chen, W. C. Cheng, K. C. Wang, Y. D. Yao

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Effects of growth temperatures to the magnetic properties of Co/Ge(111) ultrathin films have been studied. For 22 monolayers Co/Ge(l 11) deposited at 200 and 300 K, the difference of the temperatures where ferromagnetism disappears upon annealing treatment is about 75 K. The Co/Ge interface shows a more ordered structure for films deposited at 200 K as revealed by low-energy electron diffraction measurements. The responses of magneto-optic signals could be explained by the different morphologies at the interfaces. A Co/Ge(111) system exhibits a strong in-plane anisotropy that is not altered by the interfacial conditions.

Original languageEnglish
Pages (from-to)4507-4511
Number of pages5
JournalPhysica Status Solidi (B) Basic Research
Volume244
Issue number12
DOIs
Publication statusPublished - 2007 Dec 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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