title: Electrostatic tuning of the superconductor-insulator transition in two dimensions.
abstract: Superconductivity has been induced in insulating ultrathin films of amorphous bismuth using the electric field effect. The screening of the electron-electron interaction was found to increase with electron concentration in a manner correlated with the tendency towards superconductivity. This does not preclude an increase in the density of states being important in the development of superconductivity. The superconductor-insulator transition appears to belong to the universality class of the three dimensional XY model.
authors.affiliation: School of Physics and Astronomy, University of Minnesota, Minneapolis, 55455, USA.
authors.forename: Kevin A
authors.initials: KA
authors.lastname: Parendo
authors.forename: K H Sarwa B
authors.initials: KH
authors.lastname: Tan
authors.forename: A
authors.initials: A
authors.lastname: Bhattacharya
authors.forename: M
authors.initials: M
authors.lastname: Eblen-Zayas
authors.forename: N E
authors.initials: NE
authors.lastname: Staley
authors.forename: A M
authors.initials: AM
authors.lastname: Goldman