Dispersive drumhead states in nodal-line semimetal junctions

We consider a smooth interface between a topological nodal-line semimetal and a topologically trivial insulator (e.g., the vacuum) or another semimetal with a nodal ring of different radius. Using a low-energy effective Hamiltonian including only the two crossing bands, we show that these junctions...

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Bibliographic Details
Main Authors: Francesco Buccheri, Reinhold Egger, Alessandro De Martino
Format: Article
Language:English
Published: American Physical Society 2024-02-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.6.013193