Superconducting Vortex with Antiferromagnetic Core

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

References in corpus (1)

• Superconductivity-Induced Anomalies in the Spin Excitation Spectra of Underdoped YBa_2 Cu_3 O_{6+x}

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