Two-dimensional paraconductivity in superconducting Bi sub 1. 6 Pb sub 0. 4 Sr sub 2 Ca sub 2 Cu sub 3 O sub Y

Journal Article · Sun Jul 15 04:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.347184· OSTI ID:6728837

Gridin, V V; Krause, T W; Datars, W R ^[1]

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1. Department of Physics, McMaster University, Hamilton, Ontario L8S 4M1 (Canada)

Measurements of the electrical resistance {ital R} of polycrystalline samples of Bi{sub 1.6}Pb{sub 0.4}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub {ital Y}} with the 108-K superconducting phase show that the Aslamazov--Larkin (AL) two-dimensional paraconductivity corrections are observable in the vicinity of the mean-field theory transition temperature{ital T}{sup 0}{sub {ital C}}. The effective thickness, {ital d}{approx}23 A, of the superconducting electronic sheet as found from the zero field data is comparable to the {ital a},{ital b}-plane separation. This result agrees well with the recent single-crystal data. The data for magnetic fields up to 1.5 T also show paraconductivity effects. {ital T}{sup 0}{sub {ital C}} ({ital H}) is found to decrease as a function of increasing magnetic field {ital H}; this result agrees with the prediction of the AL model.

• OSTI ID: 6728837
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 68:2; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FLUCTUATIONS
HIGH-TC SUPERCONDUCTORS
LEAD COMPOUNDS
LEAD OXIDES
MAGNETIC FIELDS
ORDER PARAMETERS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCRYSTALS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VARIATIONS