Weyl points in the ferromagnetic Heusler compound Co2MnAl

Kübler, J.; Felser, C.

doi:10.1209/0295-5075/114/47005

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Weyl points in the ferromagnetic Heusler compound Co₂MnAl

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Felser, C.
Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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引用

Kübler, J., & Felser, C. (2016). Weyl points in the ferromagnetic Heusler compound Co₂MnAl. EPL, 114(4):, pp. 1-4. doi:10.1209/0295-5075/114/47005.

引用: https://hdl.handle.net/11858/00-001M-0000-002B-2460-3

要旨

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