Weyl points in the ferromagnetic Heusler compound Co2MnAl

被引：106

作者：

Kuebler, J. ^{[1
]}

Felser, C. ^{[2
]}

机构：

[1] Tech Univ Darmstadt, Inst Festkorperphys, D-64289 Darmstadt, Germany

[2] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

来源：

EPL | 2016年 / 114卷 / 04期

关键词：

D O I：

10.1209/0295-5075/114/47005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The anomalous Hall conductivity (AHC) in some ferromagnetic and antiferromagnetic Heusler compounds was theoretically and experimentally found to be exceptionally large. For the case of ferromagnetic Co2MnAl we here argue that the large AHC is connected with the appearance of Weyl points near the Fermi energy. We find four Weyl points slightly above the Fermi edge. We describe our analysis for a magnetization being in the (110)-direction. For the possible (100)-direction we find at least four Weyl points, too. We predict that Co2MnGa also possesses Weyl points near or at the Fermi energy. Copyright (C) EPLA, 2016

引用

页数：4

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