Shrinking Magnetic Vortices in V3Si Due to Delocalized Quasiparticle Core States: Confirmation of the Microscopic Theory for Interacting Vortices

Abstract

We report muon spin rotation measurements on the conventional type-II superconductor V3Si that provide clear evidence for changes to the inner structure of a vortex due to the delocalization of bound quasiparticle core states. The experimental findings described here confirm a key prediction of recent microscopic theories describing interacting vortices. The effects of vortex-vortex interactions on the magnetic and electronic structure of the vortex state are of crucial importance to the interpretation of experiments on both conventional and exotic superconductors in an applied magnetic field.

arXiv comment5 pages, 3 figures. Some textual changes for increased clarity. Updated figure. Updated references

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Cited by in corpus (28)

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• Investigations of the Core Structure of Magnetic Vortices in Type-II Superconductors by muSR
• Field dependence of the vortex core size in a multi-band superconductor
• Hole doping dependences of the magnetic penetration depth and vortex core size in YBa2Cu3Oy: Evidence for stripe correlations near 1/8 hole doping
• On the field dependence of the vortex core size
• Possible Anisotropic Order Parameter in Pyrochlore Superconductor KOs${}_2$O${}_6$ Probed by Muon Spin Rotation
• Multi-band conductivity and multi-gap superconductivity in V3Si from optical measurements on films at terahertz frequencies
• Role of CuO chains in vortex core structure in YBa2Cu3O{7-delta}
• Supercurrent on a vortex core in 2H-NbSe${}_2$: current driven scanning tunneling spectroscopy
• On the interpretation of muon-spin-rotation experiments in the mixed state of type-II superconductors
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• Muon spin rotation measurements of the vortex state in vanadium: A comparative analysis using iterative and analytical solutions of the Ginzburg-Landau equations
• Effect of field dependent core size on reversible magnetization of high-$\kappa$ superconductors
• Surface reconstruction and energy gap of superconducting V3Si(001)
• Testing V3Si for two-band superconductivity
• Two-Gap Time Reversal Symmetry Breaking Superconductivity in Non-Centrosymmetric LaNiC2
• Effect of Delocalized Vortex Core States on the Specific Heat of Nb
• Surface structure and multigap superconductivity of V3Si (111) revealed by scanning tunneling microscopy
• Microscopic properties of vortex state in YB6 probed by muon spin rotation
• Role of d-wave pairing in $A15$ superconductors
• Magnetic field-induced quasiparticle excitation in Nb3Sn: Evidence for anisotropic s-wave pairing
• Field Dependent Superfluid Density in the Optimally Doped SmFeAsO_(1-x)F_y Superconductor
• Signatures of New $d$-Wave Vortex Physics in Overdoped Tl${}_2$Ba${}_2$CuO${}_{6+x}$ Revealed by TF-${\mu }^{+}$SR
• Flux quanta driven by high-density currents in low-impurity V3Si and LuNi2B2C: free flux flow and flux-core size effect
• Correlation between Superconducting Carrier Density and Transition Temperature in NbB${}_{2+x}$