Weak coupling and anisotropy in the magnetic penetration depth of the high-temperature superconductor Tl sub 2 Ca sub 2 Ba sub 2 Cu sub 3 O sub 10+. delta

Journal Article · Sun Apr 01 00:00:00 EST 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.7293· OSTI ID:7122717

Thompson, J R ^[1]; Christen, D K ^[2]; Deeds, H A; Kim, Y C ^[3]; Brynestad, J ^[4]; Sekula, S T; Budai, J ^[5]

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1. Solid State Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6061 (USA) Department of Physics, The University of Tennessee, Knoxville, Tennessee 37996-1200 (USA)
2. Solid State Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6061 (USA)
3. Department of Physics, The University of Tennessee, Knoxville, Tennessee 37996-1200 (USA)
4. Chemistry Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6100 (USA)
5. Solid State Division, Oak Rdge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6061 (USA)

Magnetic penetration depths {lambda}({ital T}) have been determined as a function of temperature {ital T} for the high-temperature superconductor Tl{sub 2}Ca{sub 2}Ba{sub 2}Cu{sub 3}O{sub 10+{delta}}. Magnetization measurements were performed on an aligned, composite powder sample ({ital T}{sub {ital c}}=123 K) with the magnetizing field parallel or perpendicular to the common {ital c} axes of the dispersed crystallites. The magnetization in the vortex state was analyzed using the theory of Kogan {ital et} {ital al}. (Phys. Rev. B 38, 11 958 (1988)) to obtain values for {lambda}. The results were best described by BCS weak-coupling theory in the clean limit, with deduced values {lambda}(0) of 173 and 480 nm for the components of the penetration-depth tensor.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7122717
• Journal Information: Physical Review, B: Condensed Matter; (USA), Vol. 41:10; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
PENETRATION DEPTH
CALCIUM OXIDES
COPPER OXIDES
THALLIUM OXIDES
ANISOTROPY
BCS THEORY
MAGNETIZATION
POWDERS
TEMPERATURE DEPENDENCE
WEAK-COUPLING MODEL
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
MATHEMATICAL MODELS
NUCLEAR MODELS
OXIDES
OXYGEN COMPOUNDS
THALLIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties