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Persistent currents in mesoscopic cavities with surface roughness

V. M. Apel·M. J. Sánchez·G. Chiappe
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Abstract

We consider a bidimensional discrete annular cavity with surface roughness (SR) threaded by a magnetic flux. In the ballistic regime and at half filling, localized border-states show up. These border states contribute coherentely to the persistent current and the magnitude of the typical current $I_{typ}$ is enhaced with respect to their value in the absence of confinement. This result is robust with respect to changes in the relevant lengths of the sample.

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V. M. Apel, M. J. Sánchez, G. Chiappe. 1999-11-01. Persistent currents in mesoscopic cavities with surface roughness. https://doi.org/10.1016/s0378-4371(00)00170-9

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