Optically induced persistent current in carbon nanotubes
arXiv:2104.13738 · doi:10.1103/PhysRevB.103.245431
Abstract
We demonstrate theoretically that an off-resonant circularly polarized electromagnetic field can induce a persistent current in carbon nanotubes, which corresponds to electron rotation about the nanotube axis. As a consequence, the nanotubes acquire magnetic moment along the axis, which depends on their crystal structure and can be detected in state-of-the-art measurements. This effect and related phenomena are analyzed within the developed Floquet theory describing the electronic properties of the nanotubes irradiated by the field.
arXiv commentPublished version
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- Floquet theory of spin dynamics under circularly polarized light pulses
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