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Periodic Length Dependence of Magnetic Properties in Fe/MnSb Multilayered Films

Published online by Cambridge University Press:  15 February 2011

Shigeki Nakagawa
Affiliation:
Dept. of Physical Electronics, Tokyo Institute of Technology, 2–12-1 0-okayama, Meguro-ku, Tokyo 152, JAPAN.
Hiroki Tanaka
Affiliation:
Dept. of Physical Electronics, Tokyo Institute of Technology, 2–12-1 0-okayama, Meguro-ku, Tokyo 152, JAPAN.
Masahiko Naoe
Affiliation:
Dept. of Physical Electronics, Tokyo Institute of Technology, 2–12-1 0-okayama, Meguro-ku, Tokyo 152, JAPAN.
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Abstract

The relationship between crystallographic and magnetic characteristics of multilayered films composed of Fe and MnSb layers were investigated in detail. The thicknesses of Fe and MnSb layers dFe and dMnSb were changed in the range of 50 ˜ 100 and 3˜ 100 Å, respectively. Although only the (110) oriented α-Fe crystallites appeared in the films with dMnSb as small as about 5 Å, both of X-ray diffraction peaks of Fe and MnSb crystallites were not detectable in one with dMnSb of about 15 Å. The growth of both Fe and MnSb crystallites seemed to be strongly prevented in the films with dMnSb in this range. On the contrary, the peaks corresponding to (110)Fe and (110)MnSb appeared in X-ray diffraction diagram for the film with dMnSb above 25 Å. The films with d of 10 Å and dFe of 20 Å exhibite the saturation magnetization 4πMs of 15 kG and the coercivity Hc of 0.2 Oe. Such a low Hc was two order lower than those of both Fe single layer film and MnSb one. This seems to be attributed to the fine granulation of Fe and MnSb crystallites.

Type
Research Article
Copyright
Copyright © Materials Research Society 1991

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References

1. Okita, T. and Makino, Y., J. Phys. Soc. Japan, Vol.25(1) 120 (1968)Google Scholar
2. Ido, H., J. Phys. Soc. Japan, Vol.25 625 (1968)Google Scholar

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