Artificial modulation of magnetic structures on a monatomic layer scale in Co/Ru superlattices

K. Himi, K. Takanashi, S. Mitani, M. Yamaguchi, D. H. Ping, K. Hono, H. Fujimori

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30 Citations (Scopus)


Artificial modulation of magnetic structure on a monatomic layer scale has been examined in Co/Ru superlattices. The samples alternating Co 1 ML and Ru x ML (x = 1-4, ML: Monatomic Layer thickness) were prepared. Sharp fundamental and satellite peaks corresponding to superlattice structures are seen in the x-ray diffraction profiles for all the samples. For x = 1, furthermore, high-resolution transmission electron microscopy observation indicates the formation of an ordered structure with hexagonal-close-packed stacking of alternate Co and Ru atomic planes. The magnetization measurements show that only 1 ML difference in the Ru thickness has significant influence on the magnetic structure. The results are consistent with the first-principles calculations.

Original languageEnglish
Pages (from-to)1436-1438
Number of pages3
JournalApplied Physics Letters
Issue number10
Publication statusPublished - 2001 Mar 5

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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