title: Vortices and quasiparticles near the superconductor-insulator transition in thin films.
abstract: We study the low temperature behavior of an amorphous superconducting film driven normal by a perpendicular magnetic-field (B). For this purpose we introduce a new two-fluid formulation consisting of fermionized field-induced vortices and electrically neutralized Bogoliubov quasiparticles (spinons) interacting via a long-ranged statistical interaction. This approach allows us to access a novel non-Fermi-liquid phase, which naturally interpolates between the low B superconductor and the high B normal metal. We discuss the properties of the resulting "vortex metal" phase.
authors.affiliation: Kavli Institute for Theoretical Physics, University of California, Santa Barbara, 93106-4030, USA.
authors.forename: Victor M
authors.initials: VM
authors.lastname: Galitski
authors.forename: G
authors.initials: G
authors.lastname: Refael
authors.forename: Matthew P A
authors.initials: MP
authors.lastname: Fisher
authors.forename: T
authors.initials: T
authors.lastname: Senthil