Half-metallic Fe2CrSi and non-magnetic Cu2CrAl Heusler alloys for current-perpendicular-to-plane giant magneto-resistance: First principle and experimental study

被引：17

作者：

Ko, V. ^{[1
]}

Qiu, J. ^{[1
]}

Luo, P. ^{[1
]}

Han, G. C. ^{[1
]}

Feng, Y. P. ^{[2
]}

机构：

[1] Agcy Sci Technol & Res, Data Storage Inst, Singapore 117608, Singapore

[2] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 07期

关键词：

MAGNETIC-PROPERTIES;

D O I：

10.1063/1.3540667

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present results of our first principle and experimental study on new Heusler alloys candidates for half-metallic electrode and nonmagnetic spacer in current-perpendicular-to-plane giant magneto-resistance devices. The electronic structures of Fe2CrSi and Cu2CrAl are characterized by high density of states at the Fermi level in the majority spin band with a good match in their majority band structures near the Fermi level. The calculated interfacial spin polarization in Fe2CrSi/Cu2CrAl (100) superlattice is similar to 80%. We have also epitaxially grown ferromagnetic A2 Fe-Cr-Si and nonmagnetic L21 Cu-Cr-Al (100) films on Cr-buffered MgO(100) substrates. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3540667]

引用

页数：3

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