Pulsed current measurement of the resistive transition and critical current in high T sub c superconductors

Journal Article · Thu Mar 01 00:00:00 EST 1990 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1141204· OSTI ID:7008895

McGinnis, W C; Jacobs, E W; Rees, C D; Jones, T E ^[1]

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1. Naval Ocean Systems Center, Code 633, San Diego, California 92152-5000 (US)

A pulsed current technique for measuring the critical transport properties of superconductors as a continuous function of current or temperature is described. Greatly reduced sample heating permits investigation of both the weak link'' and intrinsic properties of granular superconductors. Results obtained for various high {ital T}{sub {ital c}} oxide superconductors provide an example of the technique's application. Both intergranular and intragranular critical current densities are extracted from the data. Current-voltage measurements using the pulse method are corroborated by traditional dc measurements.

• OSTI ID: 7008895
• Journal Information: Review of Scientific Instruments; (USA), Vol. 61:3; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
CRITICAL CURRENT
BISMUTH OXIDES
COPPER OXIDES
SUPERCONDUCTORS
YTTRIUM OXIDES
CURRENT DENSITY
PULSE AMPLIFIERS
PULSE GENERATORS
PULSE INTEGRATORS
PULSE TECHNIQUES
TRANSITION TEMPERATURE
ALKALINE EARTH METAL COMPOUNDS
AMPLIFIERS
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CURRENTS
ELECTRONIC EQUIPMENT
EQUIPMENT
FUNCTION GENERATORS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties