Vortex Excitations Above T c in the Cuprate Superconductor Bi2Sr2Ca2Cu3O10 as Revealed by ESR

Proposal to detect vortices above the superconducting transition temperature

“…In this context, we note a recent experiment on cuprates that detected an electron-spin-resonance signal above T c consistent with vortices. 25 The presence of multiple vortices ͑and anti-vortices͒ for dots with Ͼ c will obviously lead to a more complicated magnetic field profile. One could also consider an array of dots for vortex trapping in cuprate films.…”