Nature Communications (Apr 2020)
Observation of giant spin-split Fermi-arc with maximal Chern number in the chiral topological semimetal PtGa
- Mengyu Yao,
- Kaustuv Manna,
- Qun Yang,
- Alexander Fedorov,
- Vladimir Voroshnin,
- B. Valentin Schwarze,
- Jacob Hornung,
- S. Chattopadhyay,
- Zhe Sun,
- Satya N. Guin,
- Jochen Wosnitza,
- Horst Borrmann,
- Chandra Shekhar,
- Nitesh Kumar,
- Jörg Fink,
- Yan Sun,
- Claudia Felser
Affiliations
- Mengyu Yao
- Max Planck Institute for Chemical Physics of Solids
- Kaustuv Manna
- Max Planck Institute for Chemical Physics of Solids
- Qun Yang
- Max Planck Institute for Chemical Physics of Solids
- Alexander Fedorov
- Helmholtz-Zentrum Berlin fur Materialien und Energie
- Vladimir Voroshnin
- Helmholtz-Zentrum Berlin fur Materialien und Energie
- B. Valentin Schwarze
- Dresden High Magnetic Field Laboratory (HLD-EMFL) and Würzburg-Dresden Cluster of Excellence ct.qmat, Helmholtz-Zentrum Dresden-Rossendorf
- Jacob Hornung
- Dresden High Magnetic Field Laboratory (HLD-EMFL) and Würzburg-Dresden Cluster of Excellence ct.qmat, Helmholtz-Zentrum Dresden-Rossendorf
- S. Chattopadhyay
- Dresden High Magnetic Field Laboratory (HLD-EMFL) and Würzburg-Dresden Cluster of Excellence ct.qmat, Helmholtz-Zentrum Dresden-Rossendorf
- Zhe Sun
- National Synchrotron Radiation Laboratory, University of Science and Technology of China
- Satya N. Guin
- Max Planck Institute for Chemical Physics of Solids
- Jochen Wosnitza
- Dresden High Magnetic Field Laboratory (HLD-EMFL) and Würzburg-Dresden Cluster of Excellence ct.qmat, Helmholtz-Zentrum Dresden-Rossendorf
- Horst Borrmann
- Max Planck Institute for Chemical Physics of Solids
- Chandra Shekhar
- Max Planck Institute for Chemical Physics of Solids
- Nitesh Kumar
- Max Planck Institute for Chemical Physics of Solids
- Jörg Fink
- Max Planck Institute for Chemical Physics of Solids
- Yan Sun
- Max Planck Institute for Chemical Physics of Solids
- Claudia Felser
- Max Planck Institute for Chemical Physics of Solids
- DOI
- https://doi.org/10.1038/s41467-020-15865-x
- Journal volume & issue
-
Vol. 11,
no. 1
pp. 1 – 7
Abstract
Topological quasiparticle with higher Chern number is promising to realize large-quantized photogalvanic effect. Here, the authors observe splitting of both topological surface and bulk states in a chiral crystal PtGa, suggesting multifold fermions with a maximal Chern number of ±4.
