Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session B14: Dirac and Weyl Semimetals: Theory I
11:30 AM–2:06 PM,
Monday, March 4, 2024
Room: M100E
Sponsoring
Unit:
DCMP
Chair: Vsevolod Ivanov, Virginia Tech
Abstract: B14.00004 : Representation-enforced topological nodal planes in hexagonal space groups*
12:06 PM–12:18 PM
Presenter:
Moritz M Hirschmann
(RIKEN, CEMS)
Authors:
Moritz M Hirschmann
(RIKEN, CEMS)
Kirill Alpin
(Max Planck Institute for Solid State Research)
Raymond Wiedmann
(Max Planck Institute for Solid State Research)
Niclas Heinsdorf
(Max Planck Institute for Solid State Research)
Wan Yee Yau
(Max Planck Institute for Solid State Research)
Andreas Leonhardt
(Max Planck Institute for Solid State Research)
Johannes Mitscherling
(Department of Physics, University of California, Berkeley)
Andreas P Schnyder
(Max Planck Institute for Solid State Physics)
In this work we discuss how certain band representations of hexagonal space groups exhibit necessarily topological nodal planes with a charge that cannot be removed, propose material examples and predict their possible surface states. Further, we explain how their topological charge can be estimated using only symmetry eigenvalues and, once time reversal is broken, discuss their signatures in the anomalous Hall and Nernst effects.
[1] Yang, Y., et al., Nat Commun 10, 5185 (2019).
[2] Wilde, Marc A., et al. Nature 594.7863 (2021): 374-379.
*M.M.H. is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - project number 518238332.A.P.S., K.P., R.W, and N.H. are funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – TRR 360 – 492547816.
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