High- T sub c superconductivity of YBa sub 2 Cu sub 3 O sub 7 /PrBa sub 2 Cu sub 3 O sub 7 superlattices: An interlayer-coupling model

Journal Article · Fri Nov 01 00:00:00 EST 1991 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.44.10210· OSTI ID:6221558

Rajagopal, A K ^[1]; Mahanti, S D ^[2]

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1. Naval Research Laboratory, Washington, D.C. (USA)
2. Department of Physics and Astronomy and Center for Materials Research, Michigan State University, East Lansing, Michigan (USA)

A simple model of intralayer and interlayer couplings based on a generalized BCS pairing theory of superlattices of layered superconductors is used to correlate the recently observed trends in the {ital T}{sub {ital c}}'s of YBa{sub 2}Cu{sub 3}O{sub 7}/PrBa{sub 2}Cu{sub 3}O{sub 7} superlattices. These observed trends in the {ital T}{sub {ital c}}'s are obtained in this model if certain inequalitities are satisfied among the direct and that mediated by the PrBa{sub 2}Cu{sub 3}O{sub 7} intercell-interlayer, intracell-interlayer couplings. These inequalitities among the couplings may be reconciled in terms of the chemical structure of these systems.

• OSTI ID: 6221558
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 44:18; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER OXIDES
ELECTRON-PHONON COUPLING
HIGH-TC SUPERCONDUCTORS
PRASEODYMIUM OXIDES
YTTRIUM OXIDES
LAYERS
PAIRING INTERACTIONS
SUPERLATTICES
CHALCOGENIDES
COPPER COMPOUNDS
COUPLING
INTERACTIONS
OXIDES
OXYGEN COMPOUNDS
PRASEODYMIUM COMPOUNDS
RARE EARTH COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
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