Theory of photoemission in the Hubbard model for Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.602· OSTI ID:285633

Dahm, T; Manske, D; Tewordt, L ^[1]

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1. Abteilung fuer Theoretische Festkoerperphysik, Universitaet Hamburg, Jungiusstrasse 11, D-20355 Hamburg (Germany)

The quasiparticle spectral function is calculated for the 2D Hubbard model of Bi2212 with {ital n}{approximately}0.9. For momenta {ital k}{approx_gt}{ital k}{sub {ital F}} we obtain dips and satellite peaks at energies {omega}{lt}0 which are caused by strong scattering of quasiparticles on antiferromagnetic spin fluctuations. These structures, which may be observable, become very pronounced below {ital T}{sub {ital c}} even for momenta {ital k} lying along the node of the {ital d}{sub {ital x}{sup 2}{minus}{ital y}{sup 2}} wave gap. For {ital k} along the antinode of the gap we obtain below {ital T}{sub {ital c}} a shift of the quasiparticle peak and a dip in qualitative agreement with ARPES measurements on Bi2212. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 285633
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 1 Vol. 54; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
ANTIFERROMAGNETISM
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
ENERGY GAP
HIGH-TC SUPERCONDUCTORS
HUBBARD MODEL
PHOTOEMISSION
QUASI PARTICLES
SPECTRAL FUNCTIONS
STRONTIUM OXIDES