PreprintCC BY 4.0arXiv
Divergent Orbital Diamagnetism from Chiral Edge States in Chern Insulators
Abstract
Two-dimensional massless Dirac systems, exemplified by graphene, are known to exhibit a divergent orbital diamagnetic susceptibility that scales linearly with system size. Motivated by viewing a chiral edge state as one half of an enlarged analogue of a benzene ring, we study Chern insulators under open boundary conditions and find the same divergent scaling. This giant diamagnetism is robust against disorder, revealing its topological nature. Our results further suggest a profound connection to the divergent diamagnetism of massless Dirac systems.
Related
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BibTeX
@misc{okuma2026divergent,
title = {{Divergent Orbital Diamagnetism from Chiral Edge States in Chern Insulators}},
author = {Nobuyuki Okuma},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.09065},
eprint = {2609.09065},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.09065},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Divergent Orbital Diamagnetism from Chiral Edge States in Chern Insulators
AU - Nobuyuki Okuma
PY - 2026
DA - 2026/09/08
PB - arXiv
DO - 10.48550/arxiv.2609.09065
UR - https://arxiv.org/abs/2609.09065
AB - Two-dimensional massless Dirac systems, exemplified by graphene, are known to exhibit a divergent orbital diamagnetic susceptibility that scales linearly with system size. Motivated by viewing a chiral edge state as one half of an enlarged analogue of a benzene ring, we study Chern insulators under open boundary conditions and find the same divergent scaling. This giant diamagnetism is robust against disorder, revealing its topological nature. Our results further suggest a profound connection to the divergent diamagnetism of massless Dirac systems.
ER -