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

doi:10.1063/1.1348320

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

Materials Development Division

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29 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1436-1438
Number of pages	3
Journal	Applied Physics Letters
Volume	78
Issue number	10
DOIs	https://doi.org/10.1063/1.1348320
Publication status	Published - 2001 Mar 5

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1348320

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abstract = "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.",

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AU - Himi, K.

AU - Takanashi, K.

AU - Mitani, S.

AU - Yamaguchi, M.

AU - Ping, D. H.

AU - Hono, K.

AU - Fujimori, H.

PY - 2001/3/5

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N2 - 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.

AB - 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.

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

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