Sliding-induced topological transitions in bilayer biphenylene

2025/03/04 by L. L. Lage, Sandra Bravo, Lage, L. L. +7 · 1 citation
Physics and Astronomy · Materials Science · #Force Microscopy Techniques and Applications #Mechanical and Optical Resonators #Carbon Nanotubes in Composites

paper · pdf · doi:10.48550/arxiv.2503.02145

Abstract

Sliding-induced topological transitions in biphenylene bilayers are investigated, considering various stacking configurations which are analyzed from a symmetry perspective and described in detail,highlighting the intricate patterns of type-II Dirac cone crossings. Topological changes in the Fermi surface are assessed via the Euler characteristic, linking each transition to its corresponding symmetry, which can be experimentally tested by conductance measurements. Moreover, the ability to tune these topological properties by sliding the layers provides a simpler and more effective way to observe such phenomena.

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