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Quasiparticle spectra of Abrikosov vortices in a uniform supercurrent flow

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arxiv 1309.3763 v2 pith:JAQB247Y submitted 2013-09-15 cond-mat.supr-con

Quasiparticle spectra of Abrikosov vortices in a uniform supercurrent flow

classification cond-mat.supr-con
keywords supercurrentstatesvortexvorticesabrikosovpinneduniformacting
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We calculate the local density of states of a vortex in a two-dimensional s-wave superconductor, in the presence of a uniform applied supercurrent. The supercurrent induces changes in the electronic structure for the isolated vortex as well as the vortex lattice, which agree with the recent measurements in 2H-NbSe2 [Maldonado et al., Phys. Rev. B 88, 064518 (2013)]. We find that the supercurrent polarizes the core states when the vortices are pinned. This shows that the transfer of momentum from the supercurrent to the bound states and the rigidity of the wave functions must be considered for understanding the various forces acting on collectively pinned Abrikosov vortices.

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