Perpendicular FePt-based exchange-coupled composite media

被引：54

作者：

Makarov, D. ^{[1
]}

Lee, J. ^{[2
]}

Brombacher, C. ^{[1
]}

Schubert, C. ^{[1
]}

Fuger, M. ^{[2
]}

Suess, D. ^{[2
]}

Fidler, J. ^{[2
]}

Albrecht, M. ^{[1
]}

机构：

[1] Tech Univ Chemnitz, Inst Phys, D-09107 Chemnitz, Germany

[2] Vienna Univ Technol, Inst Solid State Phys, A-1040 Vienna, Austria

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 06期

关键词：

composite materials; copper alloys; iron alloys; magnetic multilayers; magnetic thin films; permanent magnets; platinum alloys; rapid thermal annealing; CO/PT MULTILAYERS; MAGNETIZATION; FILMS;

D O I：

10.1063/1.3309417

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Exchange-coupled composite media were realized by combining perpendicular hard magnetic FePtCu alloy films with perpendicular Co/Pt multilayers which are magnetically softer. We demonstrate that the switching field of the hard layer can be efficiently altered by modifying the material properties of the soft layer by varying the number of Co/Pt bilayers. Moreover, the possibility of effectively tuning the interlayer exchange coupling using rapid thermal annealing was shown. These studies were supported by theoretical modeling revealing the relevant factors to reduce the switching field of the hard layer which are important for future media design.

引用

页数：3

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