Electrostatic Tuning of the Superconductor-Insulator Transition in Two Dimensions

2005/01/31 by Kevin A. Parendo, Kuang‐Hsiung Tan, K. H. Sarwa B. Tan +7 · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Theoretical and Computational Physics #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.94.197004

Four pages, three figures. Revised slightly to reflect referees' comments

arxiv created 2005/03/17 · openalex publication_date 2005/05/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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.

Citations

• Field-effect transistor on SrTiO3 with sputtered Al2O3 gate insulator
• Continuous Quantum Phase Transitions
• Bottom-loading dilution refrigerator with ultrahigh vacuum deposition capability
• Electric-field effect in ultrathin films near the superconductor-insulator transition
• Metallic behavior and related phenomena in two dimensions
• Scaling Theory of Localization: Absence of Quantum Diffusion in Two Dimensions

Cited by

• Amplitude Fluctuations Driven by the Density of Electron Pairs within Nanosize Granular Structures inside Strongly Disordered Superconductors: Evidence for a Shell-Like Effect