Magnetic hardening in SmCox-Co multilayers and nanocomposites

被引：51

作者：

Liu, JP ^{[1
]}

Liu, Y

Skomski, R

Sellmyer, DJ

机构：

[1] Univ Nebraska, Behlen Lab Phys, Lincoln, NE 68588 USA

[2] Univ Nebraska, Ctr Mat Res & Anal, Lincoln, NE 68588 USA

[3] Univ Nebraska, Dept Mech Engn, Lincoln, NE 68588 USA

来源：

JOURNAL OF APPLIED PHYSICS | 1999年 / 85卷 / 08期

关键词：

D O I：

10.1063/1.370490

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

SmCox-Co (x=3.5, 4, and 5) nanostructured multilayers have been prepared by dc and rf sputtering. Magnetic hardening has been found in the as-deposited thin films. The effects of the Co and hard-phase layer thicknesses and the effect of the Cr underlayer have been studied. Further magnetic hardening has been achieved by heat treating the samples. A remarkable increase of the coercivity has been obtained in the nanocomposite films, with coercive force up to 40 kOe. Transmission electron microscopy, atomic force microscopy, and magnetic force microscopy observations have been performed to understand the nanostructure and the domain structure. (C) 1999 American Institute of Physics. [S0021-8979(99)61208-7].

引用

页码：4812 / 4814

页数：3