where the text said about the magnetic field that it “vanishes at infinity” (here) I have added a concrete pointer to a reference
]]>added a schematics graphics showing the hexagonal pattern of Abrikosov vortices: here (from Yu 2012)
]]>and yet a bit more: here
]]>I have enhanced the Figure 1 form Loudon & Midgley a little: here
]]>this is a bare section, meant to be !include
-ed into relevant entries (such as at superconductor, vortex, Dirac charge quantization and maybe elsewhere) as mentioned here