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

Journal Article · Mon Aug 13 04:00:00 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), Journal Name: Physical Review Letters; (USA) Vol. 65:7; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSOLUTE ZERO TEMPERATURE
AMORPHOUS STATE
BOSE-EINSTEIN CONDENSATION
CHALCOGENIDES
COHERENCE LENGTH
CORRELATIONS
DATA
DIMENSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON PAIRS
EXPERIMENTAL DATA
FILMS
INDIUM COMPOUNDS
INDIUM OXIDES
INFORMATION
LENGTH
MAGNETIC FIELDS
MAGNETIC FLUX
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SCALING LAWS
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
THICKNESS
ULTRALOW TEMPERATURE