Vortex fluctuations, magnetic penetration depth, and [ital H][sub [ital c]2] in Hg- and Tl-based high-[ital T][sub [ital c]] superconductors

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.48.14031· OSTI ID:6082357

Thompson, J R ^[1]; Ossandon, J G ^[2]; Christen, D K; Chakoumakos, B C ^[3]; Sun, Y R ^[4]; Paranthaman, M; Brynestad, J ^[5]

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1. Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6061 (United States) Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200 (United States)
2. Faculty of Natural Resources, University of Talca, Talca (Chile)
3. Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6061 (United States)
4. Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200 (United States)
5. Chemistry Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6100 (United States)

The presence of strong vortex fluctuation effects in two families of layered high-temperature superconductors (HgBa[sub 2]CuO[sub 4+[delta]] and Tl[sub 2]Ca[sub 2]Ba[sub 2]Cu[sub 3]O[sub 10+[delta]]) is established from experimental studies of the equilibrium magnetization in the mixed state using the theory of Bulaevskii [ital et] [ital al]. Detailed information is obtained within the framework of this theory on the London penetration depth [lambda][sub [ital a][ital b]], upper critical field [ital H][sub [ital c]2], and Ginzburg-Landau parameter [kappa][sub [ital a][ital b]] (with magnetic field perpendicular to the copper oxide planes) of these materials.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6082357
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 48:18; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL FIELD
FLUCTUATIONS
HIGH-TC SUPERCONDUCTORS
MAGNETIC FIELDS
MAGNETIC PROPERTIES
MERCURY COMPOUNDS
MERCURY OXIDES
OXIDES
OXYGEN COMPOUNDS
PENETRATION DEPTH
PHYSICAL PROPERTIES
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THALLIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
VARIATIONS
VORTICES