Aging effects on microstructure and GMR in Au-Co and Au-Co-X(X = Cu, Ni, Fe) bulk alloys

被引：0

作者：

Lee, C.G. ^{[1
]}

Kim, S.H. ^{[1
]}

Lee, D.H. ^{[1
]}

Fukamichi, K. ^{[1
]}

机构：

[1] Changwon Natl Univ, Kyungnam, Korea, Republic of

来源：

IEEE Transactions on Magnetics | 1999年 / 35卷 / 5 pt 1期

关键词：

Aging of materials - Crystal microstructure - Gold alloys - Grain growth - Granular materials - Magnetoresistance - Metallographic microstructure - Precipitation (chemical) - Transmission electron microscopy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Aging effects on the microstructure and the GMR in Au-Co and Au-Co-X(X = Fe, Ni and Cu) bulk granular alloys have been investigated. The TEM observation shows that Co particles are a plate-like type and grew with the aging time. The optimum size for the maximum MR ratio is a length of about 10 nm and a thickness of 0.6 nm. In Au-Co-X(X = Cu, Ni and Fe) bulk alloys, it was confirmed that the maximum valve of the MR ratio is about 3.5% at 10 kOe for Au80Co15Fe5 bulk alloy aged at 300 °C for 1 hr.

引用

页码：2856 / 2858

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