Effects of Al substitution for Fe in Ba ferrite thin films

被引：8

作者：

Feng, J ^{[1
]}

Matsushita, N ^{[1
]}

Murakoso, T ^{[1
]}

Nakagawa, S ^{[1
]}

Naoe, M ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 193卷 / 1-3期

关键词：

ferrite films; substitution; sputtering of ferrite films;

D O I：

10.1016/S0304-8853(98)00421-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A magnetoplumbite type of hexagonal ferrite films with composition of BaAl2Fe10O19 were deposited using Facing Targets Sputtering (FTS) apparatus on SiOx/Si wafers with Pt seed layers to promote the c-axis orientation perpendicular to the film plane. Then, the films were post-annealed at 900 degrees C in air. With the increase of Al content, saturation magnetization decreased, but coercivity and perpendicular squareness increased. The BaAl2Fe10O19 films with coercivity of 3.4 kOe and perpendicular squareness as high as 0.88 were prepared. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：152 / 154

页数：3

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