title: Predicted multiple cores of a magnetic vortex threading a two-dimensional metal proximity coupled to a superconductor.
abstract: The structure of a proximity induced vortex core in a two-dimensional metallic layer covering a superconducting half-space is calculated. We predict the formation of a multiple vortex core characterized by two-scale behavior of the local density of states. For coherent tunneling between the two-dimensional layer and the bulk superconductor, the spectrum has two subgap branches while for incoherent tunneling only one of them remains. The resulting splitting of the zero-bias anomaly and the multiple peak structure in the local density of states should be visible in the tunneling spectroscopy experiments.
authors: O. V. Lounasmaa Laboratory, Aalto University, P.O. Box 15100, 00076 Aalto, Finland.
authors: N B
authors: NB
authors: Kopnin
authors: I M
authors: IM
authors: Khaymovich
authors: A S
authors: AS
authors: Mel'nikov