$${\mathbb{Z}}/2$$ Z / 2 topological invariants and the half quantized Hall effect

Abstract The half-quantized Hall phase represents a unique metallic or semi-metallic state of matter characterized by a fractional quantum Hall conductance, precisely half of an integer ν multiple of e 2/h. Here we demonstrate the existence of a $${\mathbb{Z}}/2$$ Z / 2 topological invariant that se...

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Bibliographic Details
Main Authors: Bo Fu, Shun-Qing Shen
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-024-01926-w
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