Electrostatic Tuning of the Superconductor-Insulator Transition in Two Dimensions
Superconductivity
2009-11-11 v2 Strongly Correlated Electrons
Abstract
Superconductivity has been induced in insulating ultra-thin films of amorphous bismuth using the electric field effect. The screening of 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.
Keywords
Cite
@article{arxiv.cond-mat/0501666,
title = {Electrostatic Tuning of the Superconductor-Insulator Transition in Two Dimensions},
author = {Kevin A. Parendo and K. H. Sarwa B. Tan and A. Bhattacharya and M. Eblen-Zayas and N. E. Staley and A. M. Goldman},
journal= {arXiv preprint arXiv:cond-mat/0501666},
year = {2009}
}
Comments
Four pages, three figures. Revised slightly to reflect referees' comments