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Open Quantum Systems Decoherence Quantum Simulation

Aharonov-Bohm magnetism and Landau diamagnetism in semimetals

arXiv
Authors: Eugene B. Kolomeisky, Joseph P. Straley

Year

2011

Paper ID

30974

Status

Preprint

Abstract Read

~2 min

Abstract Words

95

Citations

N/A

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.

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  • 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.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1112.6375 [2] arXiv https://arxiv.org/abs/1112.6375 [3] Publisher https://arxiv.org/abs/1112.6375

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