Magneto-optical properties of a sputtered Bi-substituted Dy iron garnet-ferrite/spinel-ferrite bilayer

被引：8

作者：

Furuya, A

Yoshikawa, H

Ohkubo, T

Yamamoto, M

Tailhades, P

Bouet, L

Despax, C

Presmanes, L

Rousset, A

机构：

[1] NTT, Integrated Informat & Energy Syst Labs, Musashino, Tokyo 1808585, Japan

[2] Univ Toulouse 3, Lab Chim Mat Inorgan, CNRS, URA 5070, F-31062 Toulouse, France

来源：

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

关键词：

multilayers; thin films; magneto-optical property; garnet-ferrite; spinel-ferrite; Faraday effect; solid-phase epitaxy;

D O I：

10.1016/S0304-8853(98)00419-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bi-substituted Dy iron garnet-ferrites, Bi2DyFe4GaO12, were prepared by RF magnetron sputtering on a spinel-ferrite underlayer on a quartz glass substrate. This study investigated the effect of the spinel underlayer, a mixed crystal of Fe3O4 and gamma-Fe2O3, on improving the magneto-optical properties. It was found that the presence of the spinel-ferrite underlayer increased the Faraday effect, compared to that of a garnet layer with no underlayer, for which the Faraday effect was almost non-existent. It is concluded that the high-temperature-treated spinel-ferrite underlayer enhanced the magneto-optical characteristics. This bilayer structure is therefore promising for magneto-optical recording media. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：143 / 147

页数：5

共 15 条

[1] INFLUENCE OF RADIOFREQUENCY SPUTTERING AND CRYSTALLIZATION PARAMETERS ON THE STRUCTURE OF THE BIGA-DYLG GARNET-FILMS FOR MAGNETOOPTICAL RECORDING [J].