Landau levels of the Euler class topology

Two-dimensional systems with C_{2}T (PT) symmetry exhibit the Euler class topology E∈Z in each two-band subspace realizing a fragile topology beyond the symmetry indicators. By systematically studying the energy levels of Euler insulating phases in the presence of an external magnetic field, we reve...

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Bibliographic Details
Main Authors: Yifei Guan, Adrien Bouhon, Oleg V. Yazyev
Format: Article
Language:English
Published: American Physical Society 2022-06-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.023188