Year: 2025
Type: article
Abstract: We compute the magnetic response of hollow semimetal cylinders and rings to the presence of an axial Aharonov–Bohm magnetic flux, in the absence of interactions. We predict nullification of the Aharonov–Bohm effect for a class of dispersion laws that includes ‘non-relativistic’ dispersion and demonstrate that at zero flux the ground-state of a very short ‘armchair’ graphene tube will exhibit a ferromagnetic broken symmetry. We also compute the diamagnetic response of bulk semimetals to the presence of a uniform magnetic field, specifically predicting that the susceptibility has a logarithmic dependence on the size of the sample.
Source: Physica Scripta
Authors: Eugene B Kolomeisky, Joseph P Straley
Institutions: University of Virginia, University of Kentucky
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,400
OpenAlex ID: W1601838858