Calculations of magnetic field produced by spin-vortex-induced loop currents in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ thin films using the particle-number conserving Bogoliubov-de Gennes formalism

Hiroyasu Koizumi, Haruki Nakayama, Hayato Taya

A theory for cuprate superconductivity predicts the existence of nano-sized loop currents called, `` spin-vortex-induced loop currents (SVILCs)''. We calculate magnetic fields prod…