Influence of an Fe cap layer on the structural and magnetic properties of Fe49Pt51/Fe bi-layers

• 来源期刊: 中国物理B（英文版）
• 关键词: Fe cap layer L10 FePt magnetism
• 年，卷（期）: 2009,（6）
• 页码范围: 2565-2570
• 页数: 6页
• 语种: 英文

摘要

The influences of an Fe cap layer on the structural and magnetic properties of FePt/Fe bi-layers are investigated.Compared with single FePt alloy films, a thin Fe layer can affect the crystalline orientation and improve the chemical ordering of L10 FePt films. Moreover, the coercivity increases when a thin Fe layer covers the FePt layer. Beyond a critical thickness, however, the Fe cover layer quickens the magnetization reversal of Fe49Pt51/Fe bi-layers by their exchange coupling.