Quasiparticle dispersion in the cuprate superconductors and the two-dimensional Hubbard model

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.50.7215· OSTI ID:7071553

Bulut, N ^[1]; Scalapino, D ^[2]; White, S ^[3]

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1. Department of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801-3080 (United States)
2. Department of Physics, University of California at Santa Barbara, Santa Barbara, California 93106-9530 (United States)
3. Department of Physics, University of California at Irvine, Irvine, California 92717-4575 (United States)

The momentum dispersion of the peak structure of the single-particle spectral weight [ital A](p,[omega]) of the two-dimensional Hubbard model is discussed. Using results obtained from Monte Carlo simulations on lattices up to 12[times]12 in size, we determine the low-lying quasiparticle dispersion relation. This dispersion relation is anomalously flat near the ([pi],0) and (0,[pi]) points of the Brillouin zone, similar to the results of recent angular resolved photoemission measurements of the hole-doped cuprates. We argue that the generic nature of the quasiparticle dispersion relation observed in these materials arises from the strong Coulomb interaction and reflects the hole-spin correlations rather than the one-electron interactions which customarily determine the band structure.

• OSTI ID: 7071553
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 50:10; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER COMPOUNDS
CRYSTAL MODELS
CUPRATES
DISPERSION RELATIONS
ELECTRONIC STRUCTURE
HIGH-TC SUPERCONDUCTORS
HUBBARD MODEL
MATHEMATICAL MODELS
OXYGEN COMPOUNDS
QUASI PARTICLES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TWO-DIMENSIONAL CALCULATIONS