Superconducting Vortex with Antiferromagnetic Core
arXiv:cond-mat/9704048 · doi:10.1103/PhysRevLett.79.2871
Abstract
We show that a superconducting vortex in underdoped high T_c superconductors could have an antiferromagnetic core. This type of vortex configuration arises as a topological solution in the recently constructed SO(5) nonlinear sigma model and in Ginzburg-Landau theory with competing antiferromagnetic and superconducting order parameters. Experimental detection of this type of vortex by μSR and neutron scattering is proposed.
revised version; 4 pages, LaTeX, 3 encapsulated postscript figures, submitted to Phys. Rev. Lett