title: Phase diagram of electron systems near the superconductor-insulator transition.
abstract: The zero temperature phase diagram of Cooper pairs exposed to disorder and a magnetic field is determined theoretically from a variational approach. Four distinct phases are found: a Bose and a Fermi insulating, a metallic, and a superconducting phase, respectively. The results explain the giant negative magnetoresistance found experimentally in In-O, TiN, Be and high-T(c) materials.
authors.affiliation: Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA.
authors.forename: V L
authors.initials: VL
authors.lastname: Pokrovsky
authors.forename: G M
authors.initials: GM
authors.lastname: Falco
authors.forename: T
authors.initials: T
authors.lastname: Nattermann