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

Journal Article · Mon Aug 13 00:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.65.927· OSTI ID:6380387

Hebard, A F; Paalanen, M A ^[1]

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1. AT T Bell Laboratories, Murray Hill, NJ (USA)

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.

• OSTI ID: 6380387
• Journal Information: Physical Review Letters; (USA), Vol. 65:7; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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