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Title: Magnetic-field-tuned superconductor-insulator transition in two-dimensional films

Abstract

A magnetic field is used to tune through a new superconducting-insulating transition of amorphous-composite indium oxide films at various stages of disorder. The results are in accord with scaling theory which identifies a universal sheet resistance separating a superconducting phase of localized vortices and Bose-condensed electron pairs from an insulating phase of Bose-condensed vortices and localized electron pairs. A unity dynamical exponent is confirmed and scaling behavior of the resistance over a wide range of temperatures and magnetic fields is found.

Authors:
;  [1]
  1. AT T Bell Laboratories, Murray Hill, NJ (USA)
Publication Date:
OSTI Identifier:
6380387
Resource Type:
Journal Article
Journal Name:
Physical Review Letters; (USA)
Additional Journal Information:
Journal Volume: 65:7; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; INDIUM OXIDES; SUPERCONDUCTIVITY; ABSOLUTE ZERO TEMPERATURE; AMORPHOUS STATE; BOSE-EINSTEIN CONDENSATION; COHERENCE LENGTH; CORRELATIONS; ELECTRIC CONDUCTIVITY; ELECTRON PAIRS; EXPERIMENTAL DATA; MAGNETIC FIELDS; MAGNETIC FLUX; PHASE TRANSFORMATIONS; SCALING LAWS; SUPERCONDUCTING FILMS; TEMPERATURE DEPENDENCE; THICKNESS; ULTRALOW TEMPERATURE; CHALCOGENIDES; DATA; DIMENSIONS; ELECTRICAL PROPERTIES; FILMS; INDIUM COMPOUNDS; INFORMATION; LENGTH; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; 360603* - Materials- Properties; 656100 - Condensed Matter Physics- Superconductivity

Citation Formats

Hebard, A F, and Paalanen, M A. Magnetic-field-tuned superconductor-insulator transition in two-dimensional films. United States: N. p., 1990. Web. doi:10.1103/PhysRevLett.65.927.
Hebard, A F, & Paalanen, M A. Magnetic-field-tuned superconductor-insulator transition in two-dimensional films. United States. doi:10.1103/PhysRevLett.65.927.
Hebard, A F, and Paalanen, M A. Mon . "Magnetic-field-tuned superconductor-insulator transition in two-dimensional films". United States. doi:10.1103/PhysRevLett.65.927.
@article{osti_6380387,
title = {Magnetic-field-tuned superconductor-insulator transition in two-dimensional films},
author = {Hebard, A F and Paalanen, M A},
abstractNote = {A magnetic field is used to tune through a new superconducting-insulating transition of amorphous-composite indium oxide films at various stages of disorder. The results are in accord with scaling theory which identifies a universal sheet resistance separating a superconducting phase of localized vortices and Bose-condensed electron pairs from an insulating phase of Bose-condensed vortices and localized electron pairs. A unity dynamical exponent is confirmed and scaling behavior of the resistance over a wide range of temperatures and magnetic fields is found.},
doi = {10.1103/PhysRevLett.65.927},
journal = {Physical Review Letters; (USA)},
issn = {0031-9007},
number = ,
volume = 65:7,
place = {United States},
year = {1990},
month = {8}
}