Two-dimensional fluctuations in the magnetization of Bi sub 2 Sr sub 2 Ca sub 2 Cu sub 3 O sub 10
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- Division of Materials Sciences, Brookhaven National Laboratory, Upton, New York 11973 (United States)
- Osaka Research Laboratories, Sumitomo Electric Industries, Ltd. 1-1-3 Shimaya, Konohana-ku, Osaka, 554 (Japan)
Magnetization measurements on {ital c}-axis-oriented bulk Bi{sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10} with the magnetic field parallel to the {ital c} axis are reported. The results show large fluctuation effects, which can be explained by Ginzburg-Landau fluctuation theory for a two-dimensional (2D) system. The magnetization in high fields displays good scaling behavior as a function of ({ital T}{minus}{ital T}{sub {ital c}}({ital H}))/({ital TH}){sup 1/2}. The weak-field fluctuation diamagnetic susceptibility {chi}({ital T}) above {ital T}{sub {ital c}} can be fitted well in terms of the 2D Lawrence-Doniach model. Values of {xi}{sub {ital a}{ital b}}(0) and {ital dH}{sub {ital c}2}/{ital dT} derived from our fluctuation analysis are consistent with those obtained by fitting the Hao-Clem variational model to the reversible magnetization data below {ital T}{sub {ital c}}.
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 7279821
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 46:9; ISSN PRBMD; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
FLUCTUATIONS
HIGH-TC SUPERCONDUCTORS
MAGNETIZATION
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
VARIATIONS
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
FLUCTUATIONS
HIGH-TC SUPERCONDUCTORS
MAGNETIZATION
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
VARIATIONS