Large diamagnetic persistent currents
arXiv:0710.1235 · doi:10.1088/1367-2630/10/8/083014
Abstract
In multichannel rings, evanescent modes will always co-exist with propagating modes. The evanescent modes can carry a very large diamagnetic persistent current that can oscillate with energy and are very sensitive to impurity scattering. This provides a natural explanation for the large diamagnetic persistent currents observed in experiments.
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