Electronic structure of multiquantum giant vortex states in mesoscopic superconducting disks

Details Electronic structure of multiquantum giant vortex states in mesoscopic superconducting disks Electronic structure of multiquantum giant vortex states in mesoscopic superconducting disks

2002-04-17

arxiv.org/abs/cond-mat/0204384v1

Published in Proc. Natl. Acad. Sci. USA 99, 5233-5236 (2002)

Physics

Condensed Matter

Superconductivity

5 pages, 4 figures

Scientific paper

10.1073/pnas.082096799

We report self-consistent calculations of the microscopic electronic structure of the so-called giant vortex states. These novel multiquantum vortex states, detected by recent magnetization measurements on submicron disks, are qualitatively different from the Abrikosov vortices in the bulk. We find that, in addition to multiple branches of bound states in the core region, the local tunneling density of states exhibits Tomasch oscillations due to the single-particle interference arising from quantum confinement. These features should be directly observable by scanning tunneling spectroscopy.

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