Vortex charge

Extended Ginzburg-Landau theory accounts for (in the superconductors usually ignored) possible presence of electric field. It enabled us to calculate experimentally observed electric charge of the vortex core
See the paper:
Charge Profile in Vortices.
J.Koláček, P.Lipavský, E.H.Brandt
Phys.Rev.Lett. 86, 312 (2001)

see also:
Nuclear resonance shift in the vortex lattice in YBa₂Cu₃O₇
P.Lipavský, J.Koláček, K.Morawetz, E.H.Brandt
Phys.Rev.B 66, 134525 (2002)

Charge density in a superconductor with a triangular vortex lattice.

The charge density is plotted in units 1026 electrons per unit cell, with the volume of the unit cell 0.173 nm³ corresponding to YBCO.