Non-collinear antiferromagnets and the anomalous Hall effect
By J. Kubler, Claudia Felser. 2014
364 citations recorded by the source corpus.
The anomalous Hall effect is investigated theoretically by employing density functional calculations for the non-collinear antiferromagnetic order of the hexagonal compounds Mn3Ge and Mn3Sn using various planar triangular magnetic configurations as well as unexpected non-planar configurations. The former give rise to anomalous Hall conductivities (AHC) that are found to be extremely anisotropic. For the planar cases the AHC is connected with Weyl points in the energy-band structure. If this case were observable in Mn3Ge, a large AHC of about should be expected. However, in Mn3Ge it is the non-planar configuration that is energetically favored, in which case it gives rise to an AHC of . The non-planar configuration allows a quantitative evaluation of the topological Hall effect that is seen to determine this value of to a large extent. For Mn3Sn it is the planar configurations that are predicted to be observable. In this case the AHC can be as large as .
Subfields: Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/7713a6cebfb5e0e9ecd5d26426c09c640c04598a
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In Atomic and Molecular Physics, and Optics
- Ashvin Vishwanath
- Claudia Felser
- N. P. Armitage
- E. Mele
- Binghai Yan
- A. Manchon
- Yan Sun
- Stuart S. P. Parkin
In Electronic, Optical and Magnetic Materials
- Stuart S. P. Parkin
- Claudia Felser
- Lukas Wollmann
- A. Nayak
- S. Nakatsuji
- J. Kübler
- Naoki Kiyohara
- T. Tomita
In Materials Chemistry
- Ashvin Vishwanath
- Claudia Felser
- N. P. Armitage
- E. Mele
- Stuart S. P. Parkin
- Binghai Yan
- Lukas Wollmann
- S. Nakatsuji
Citations in the corpus
- Large anomalous Hall effect driven by a nonvanishing Berry curvature in the noncolinear antiferromagnet Mn3Ge (2015, background): “The feasibility of a nonplanar structure in Mn3Ge has also been discussed in our previous theoretical work (8).”
- Giant Anomalous Hall Effect in the Chiral Antiferromagnet Mn 3 Ge (2015, methodology): “A numerical calculation using a different spin structure from the experimentally observed one indicates that the AHE could be large for Mn3Ge [9].”
- Beyond skyrmions: Review and perspectives of alternative magnetic quasiparticles (2020, background): “Also the anomalous Hall effect in several coplanar Kagome magnets without net magnetization [91, 92, 93, 94, 95] and the crystal Hall effect for which a set of time reversal and spatial symmetries is broken by the arrangement of non-magnetic atoms in the crystal [96, 97] have been predicted and meas”