Preparation and magnetical studies of Mn50Al50/Al bilayer films

被引：6

作者：

Kuo, PC ^{[1
]}

Yao, YD ^{[1
]}

Chen, WR ^{[1
]}

Huang, JH ^{[1
]}

机构：

[1] ACAD SINICA,INST PHYS,TAIPEI 115,TAIWAN

来源：

JOURNAL OF APPLIED PHYSICS | 1997年 / 81卷 / 08期

关键词：

THIN-FILMS; PHASE;

D O I：

10.1063/1.364484

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Mn50Al50/Al bilayer films were fabricated on a glass substrate by rf magnetron sputtering. The films were subsequently heat-treated in order to transform nonmagnetic MnAl E-phase to magnetic tau-phase. The addition of Al buffer layer could enhance the adhesion of the MnAl films, and for Mn50Al50/Al bilayer films with Al layer thickness between 5 and 15 nm, we can obtain high saturation magnetization (>390 emu/cm(3)), and high coercivity (>2200 Oe) Mn50Al50/Al films for practical usage. Bending beam method analysis shows that the larger the residual stress of the Mn50Al50/Al bilayer film is, the higher the coercivity is. The relations between the saturation magnetization, the coercivity and the phase transition, the microstructures of the films are discussed. (C) 1997 American Institute of Physics.

引用

页码：5253 / 5255

页数：3

共 14 条

[1] MN-AL-C FOR PERMANENT-MAGNETS [J].