Structure and magnetic properties of exchange-spring Sm-Co/Co superlattices

被引：102

作者：

Fullerton, EE ^{[1
]}

Jiang, JS ^{[1
]}

Sowers, CH ^{[1
]}

Pearson, JE ^{[1
]}

Bader, SD ^{[1
]}

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 03期

关键词：

D O I：

10.1063/1.120743

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present structural and magnetic properties of epitaxial Sm-Co/Co superlattice films prepared via magnetron sputtering. X-ray diffraction and cross-sectional transmission electron microscopy show that the films are structurally coherent, The oriented nature of the interleaved ferromagnetically "hard" and "soft" layers comprising the superlattice provides a realization of the ideal nanostructure of exchange-spring magnets as well as a model system to study layer thickness dependences of the magnetic properties. The superlattice films have an effective fourfold, in-plane magnetic anisotropy. Room-temperature hysteresis loops are relatively square and the demagnetization of the Co is reversible, as expected of exchange-spring magnets with aligned hard magnet layers.

引用

页码：380 / 382

页数：3

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