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Updated: Aug 5, 2025

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
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Interaction Effects in a 1D Flat Band at a Topological Crystalline Step Edge

Glenn Wagner1, Souvik Das2, Johannes Jung3

  • 1Department of Physics, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.

Nano Letters
|March 27, 2023
PubMed
Summary

Investigating topological crystalline insulators in PbSnSe revealed that step edges, when near the Fermi level, open a correlation gap due to enhanced electronic interactions in one-dimensional channels. This highlights the interplay between topology and many-body effects.

Keywords:
Hartree−Fockstrong correlations in flat bandstopological crystalline insulatorstopological edge states

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