Quasiparticle energy dispersion in doped two-dimensional quantum antiferromagnets

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.R12653· OSTI ID:389352

Xiang, T; Wheatley, J M ^[1]

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1. Research Center in Superconductivity, University of Cambridge, Madingley Road, Cambridge CB3 0HE (United Kingdom)

The quasiparticle dispersion in the one-hole {ital t}-{ital t}{prime}-{ital t} {double_prime}-{ital J} model is studied. Both finite-size diagonalization and the self-consistent Born-approximation calculations have been performed and compared. The quasiparticle band structures in the hole- and electron-doped high-{ital T}{sub {ital c}} cuprates are qualitatively different. In the hole-doped compounds, the band maxima are located at ({plus_minus}{pi}/2,{plus_minus}{pi}/2), while in the electron-doped compounds the band maxima are located at ({pi},0) and its equivalent points. The angle-resolved photoemission data for the quasiparticle dispersion of Sr{sub 2}CuO{sub 2}Cl{sub 2} can be quantitatively reproduced using the one-band {ital t}-{ital t}{prime}-{ital t} {double_prime}-{ital J} model with the three-site hopping term. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 389352
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 18 Vol. 54; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTIFERROMAGNETIC MATERIALS
BAND THEORY
BORN APPROXIMATION
CRYSTAL MODELS
CUPRATES
DISPERSION RELATIONS
ELECTRONIC STRUCTURE
HIGH-TC SUPERCONDUCTORS
QUASI PARTICLES
TWO-DIMENSIONAL CALCULATIONS