Thickness dependence of the magnetic properties in ultrathin Co/Ge(111) films

J. S. Tsay, H. Y. Nieh*, C. S. Yang, Y. D. Yao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The existence of a low-Curie-temperature phase for Co/Ge(111) films is proofed by performing surface magnetooptic Kerr effect measurements at 150 K. The coercive force of the films increases slowly between 7.5 and 15 monolayers, and then increases promptly at larger thicknesses. The different increasing rates of the coercive force can be explained by the different interfacial roughness that influences the pinning of the domain walls.

Original languageEnglish
Pages (from-to)e829-e831
JournalJournal of Magnetism and Magnetic Materials
Issue numberSUPPL. 1
Publication statusPublished - 2004 May
Externally publishedYes


  • Cobalt
  • Germanium
  • Magneto-optic Kerr effect
  • Ultrathin films

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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