High TC half-metallic fully-compensated ferrimagnetic Heusler compounds

被引：124

作者：

Galanakis, I. ^{[1
]}

Sasioglu, E. ^{[2
,3
,4
,5
]}

机构：

[1] Univ Patras, Sch Nat Sci, Dept Mat Sci, GR-26504 Patras, Greece

[2] Forschungszentrum Julich, Peter Grunberg Inst, D-52425 Julich, Germany

[3] Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany

[4] JARA, D-52425 Julich, Germany

[5] Fatih Univ, Dept Phys, TR-34500 Istanbul, Turkey

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 05期

关键词：

D O I：

10.1063/1.3619844

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Extensive ab-initio electronic structure calculations on Heusler alloys suggest that Cr2CoGa is the alloy of choice to achieve the half-metallic fully-compensated ferrimagnetism since (1) it has been already grown experimentally [T. Graf et al., Z. Anorg. Allg. Chem. 635, 976 (2009)], (2) half-metallic XA structure is favored energetically over all the studied lattice constant range with respect to the L2(1) which is not half-metallic, (3) the half-metallic gap is wide and the Fermi level falls at the middle of the gap and thus, it presents high degree of spin-polarization for a wide range of lattice constants, and (4) the Curie temperature is extremely high reaching the 1520 K. (C) 2011 American Institute of Physics. [doi:10.1063/1.3619844]

引用

页数：3

共 19 条

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