Weak-coupling theory of high-temperature superconductivity in the antiferromagnetically correlated copper oxides

Journal Article · Tue Dec 01 04:00:00 EST 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.46.14803· OSTI ID:6934238

Monthoux, P ^[1]; Balatsky, A V ^[2]; Pines, D ^[1]

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1. Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801 (United States)
2. Center for Materials Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States) Landau Institute for Theoretical Physics, Moscow (USSR)

We show that the retarded interaction between quasiparticles on a two dimensional square lattice induced by the exchange of antiferromagnetic paramagnons leads uniquely to a transition to a superconducting state with [ital d][sub [ital x]][sup 2][minus][ital y][sup 2] symmetry. We find that the effective quasiparticle interaction responsible for superconductivity possesses considerable structure in both momentum and frequency space, and show, by explicit calculations, that if one wishes to obtain quantitatively meaningful results it is essential to allow for that structure in solving the full integral equations that determine the superconducting transition temperature and the superconducting properties. With a spin-excitation spectrum and a quasiparticle-paramagnon coupling determined by fits to normal-state experiments, we obtain high transition temperatures and energy-gap behaviors comparable to those measured for YBa[sub 2]Cu[sub 3]O[sub 7], YBa[sub 2]Cu[sub 3]O[sub 6.63], and La[sub 1.85]Sr[sub 0.15]CuO[sub 4].

• OSTI ID: 6934238
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 46:22; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CUPRATES
ENERGY GAP
HIGH-TC SUPERCONDUCTORS
MAGNETISM
MATHEMATICAL MODELS
NUCLEAR MODELS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUASI PARTICLES
SPIN EXCHANGE
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
WEAK-COUPLING MODEL