Photoemission spectra in {ital t}-{ital J} ladders with two legs

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.R3718· OSTI ID:286707

Haas, S; Dagotto, E ^[1]

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1. Theoretische Physik, Eidenoessiche Technische Hochschule Zuerich--Hoenggerberg, CH-8093 Zurich, Switzerl

Photoemission spectra for the isotropic two-leg {ital t}-{ital J} ladder are calculated at various hole-doping levels using exact diagonalization techniques. Low-energy sharp features caused by short-range antiferromagnetic correlations are observed at finite doping levels close to half-filling, above the naive Fermi momentum. These features should be observable in angle-resolved photoemission experiments. In addition, the formation of a {ital d}-wave pairing condensate as the ratio {ital J}/{ital t} is increased leads to dynamically generated spectral weight for momenta close to {ital k}{sub {ital F}} where the {ital d}{sub x{sup 2}{minus}y{sup 2}} order parameter is large. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286707
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 6 Vol. 54; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTIFERROMAGNETISM
BOSE-EINSTEIN CONDENSATION
CRYSTAL MODELS
D WAVES
ELECTRONIC STRUCTURE
HIGH-TC SUPERCONDUCTORS
ORDER PARAMETERS
PAIRING INTERACTIONS
PHOTOEMISSION
SPIN SYSTEMS