Magnetic and transport properties of Cu2MnAl Heusler alloy prepared by rapidly quenched method

被引：7

作者：

Bang, Do ^{[1
]}

Dan, Nguyen Huy ^{[1
]}

Tuan, Nguyen Anh ^{[1
]}

Phuc, Nguyen Xuan ^{[1
]}

机构：

[1] VAST, Inst Mat Sci, Hanoi, Vietnam

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 01期

关键词：

magnetoresistance; Heusler alloys; rapidly quenched method; spintronic materials;

D O I：

10.1016/j.jmmm.2006.07.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Cu2MnAl alloy was prepared by rapidly quenched (suction-casting and melt-spinning) methods with various thicknesses of 20, 40 and 1000 mu m. The X-ray diffraction (XRD) patterns of the fabricated samples show a single phase of Cu2MnAl. All the samples reveal soft magnetic behavior with coercivity below 1.6 kA/m and Curie temperature of about 600 K. Resistance of the alloy behaves as a linear function of applied magnetic field. Magnetoresistance (MR) ratio depends on the thickness of the samples and achieves similar to 0.8% at the field of 240 kA/m for the sample with thickness of 20 mu m. The variation of the properties of the alloy can be interpreted by the difference of energy band structure caused by defects in the alloy. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：48 / 50

页数：3

共 13 条

[1] Molecular beam epitaxy growth of ferromagnetic single crystal (001) Ni2MnGa on (001) GaAs [J].