Topological Weyl semimetals in the chiral antiferromagnetic materials Mn3Ge and Mn3Sn

By Hao Yang, Yan Sun, Yang Zhang, W. Shi, Stuart S. P. Parkin, Binghai Yan. New Journal of Physics, 2016

359 citations recorded by the source corpus.

Recent experiments revealed that Mn3Sn and Mn3Ge exhibit a strong anomalous Hall effect at room temperature, provoking us to explore their electronic structures for topological properties. By ab initio band structure calculations, we have observed the existence of multiple Weyl points in the bulk and corresponding Fermi arcs on the surface, predicting antiferromagnetic Weyl semimetals in Mn3Ge and Mn3Sn. Here the chiral antiferromagnetism in the Kagome-type lattice structure is essential to determine the positions and numbers of Weyl points. Our work further reveals a new guiding principle to search for magnetic Weyl semimetals among materials that exhibit a strong anomalous Hall effect.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/ac38d0ddd4ded85de8a082237e77b94ad9f9c85c

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Ashvin Vishwanath
2. N. P. Armitage
3. J. Venderbos
4. Andrew M. Rappe
5. A. Manchon
6. Youngkuk Kim
7. Heng Gao
8. E. Mele

In Condensed Matter Physics

1. A. Manchon
2. Heng Gao
3. Youngkuk Kim
4. Ashvin Vishwanath
5. Y. Tserkovnyak
6. T. Ono
7. V. Baltz
8. N. P. Armitage

In Materials Chemistry

1. Ashvin Vishwanath
2. J. Venderbos
3. Andrew M. Rappe
4. Youngkuk Kim
5. Heng Gao
6. N. P. Armitage
7. Mazhar N. Ali
8. Y. Tserkovnyak

Citations in the corpus

• Antiferromagnetic spintronics (2016, background): “, 2016), Mn3Ge, and Mn3Sn (Yang et al., 2017), and CuMnAs (Tang et al.”
• Topological Semimetals from First Principles (2018, background): “More recently, a class of magnetic Co-based magnetic Heusler compounds has been proposed as Weyl semimmetals (81, 82), in addition to the antiferromagnetic Mn3Sn family of materials (83) and layered half-metal Co3Sn2S2 (84).”
• Weyl and Dirac semimetals in three-dimensional solids (2017, background): “They have been predicted (Yang et al., 2017; Zhang et al., 2017c) to be WSMs with several Weyl points as well as trivial bands near the Fermi level.”
• Quantum states and intertwining phases in kagome materials (2023, background): “Another kagome metal family, AM 6 X 6 (the ‘166’ family) has attracted substantial attention due to its more prevalent magnetic properties and large chemical diversity; the A site can be an alkali, alkaline earth or rare earth metal, the M site can be a transition metal, such as Mn, Fe, Ni, V, Co or”