Consistent picture for the electronic structure around a vortex core in iron-based superconductors

Details Consistent picture for the electronic structure around a vortex core in iron-based superconductors Consistent picture for the electronic structure around a vortex core in iron-based superconductors

2011-05-10

arxiv.org/abs/1105.1851v1

Phys. Rev. B 84, 174524 (2011)

Physics

Condensed Matter

Superconductivity

4 pages, 5 figures

Scientific paper

10.1103/PhysRevB.84.174524

Based on a two-orbital model and taking into account the presence of the impurity, we studied theoretically the electronic structure in the vortex core of the iron-Pnictide superconducting materials. The vortex is pinned when the impurity is close to the vortex core. The bound states shows up for the unpinned vortex and are wiped out by a impurity. Our results are in good agreement with recent experiments and present a consistent explanation for the different electronic structure of vortex core revealed by experiments on different materials.

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