STRUCTURE AND MAGNETIC-PROPERTIES OF CO/AL MULTILAYERED FILMS

被引：19
|
作者：
MITSUZUKA, T
KAMIJO, A
IGARASHI, H
机构：
[1] Fundamental Research Laboratories, NEC Corporation, Miyamae-ku, Kawasaki, Kanagawa 213, 1-1
来源：
JOURNAL OF APPLIED PHYSICS | 1990年 / 68卷 / 04期
关键词：
D O I：
10.1063/1.346610
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on an investigation of Co/Al multilayered films (MLFs). The samples had periodic layered structures and had in-plane easy axes. Nonmagnetic CoAl compound was formed at the Co/Al interfaces. Co/Al MLFs had a perpendicular interface anisotropy. This interface anisotropy energy (Ks) was estimated to be 0.25 erg/cm2. Taking account the volume contribution of Co layers, it was suggested that perpendicular magnetism would appear when the remaining unmixed Co layer thickness was under 6 Å. However, this surface anisotropy energy vanished when the Co layers were thinner than 9 Å. In Co/Al MLFs with thin Co layers, the island growth of Co on the initial stage was considered to be the reason for Ks=0.
引用
收藏
页码：1787 / 1790
页数：4
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