Perpendicular Magnetic Anisotropy in Amorphous Ferromagnetic CoSiB/Pt Multilayers
  • Hwang, J. Y.
  • Park, J. S.
  • Yim, H. I.
  • Kim, T. W.
  • Shin, D. Y.
  • 외 1명
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초록

Magnetic anisotropy properties of amorphous ferromagnetic CoSiB/Pt multilayers with perpendicular magnetic anisotropy (PMA, K-u) were systematically investigated as a function of CoSiB layer thickness (t(coSiB)) and Pt layer thickness (t(pt)). In two series of t(coSiB) /t(ocsiB)/Pt t(pt)](5) multilayers, the perpendicular coercivity (H-c) increased to reach a maximum and then decreased with further increase in both t(coSiB) and t(pt), due to intermixing of CoSiB/Pt interfaces. Particularly, using the amorphous soft magnetic CoSiB, the coercivity became very sensitive to the CoSiB thickness. These multilayer films exhibited a high Ku of 2 x 10(6) erg/cc and a high H-c of 360 Oe with marked squareness. It was found that even after annealing at 350 degrees C, the CoSiB/Pt multilayers had a high PMA and their Hc increased.

키워드

Perpendicular Magnetic AnisotropyCoSiBMagnetic MultilayersThin FilmsCoercivity
제목
Perpendicular Magnetic Anisotropy in Amorphous Ferromagnetic CoSiB/Pt Multilayers
저자
Hwang, J. Y.Park, J. S.Yim, H. I.Kim, T. W.Shin, D. Y.Lee, S. B.
DOI
10.1166/jnn.2011.3236
발행일
2011-01
유형
Article
저널명
Journal of Nanoscience and Nanotechnology
11
1
페이지
856 ~ 859