Pseudogap in underdoped high-T{sub c} superconductors in the framework of the boson-fermion model

Journal Article · Wed Oct 01 00:00:00 EDT 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.56.8330· OSTI ID:632616

Ranninger, J; Robin, J ^[1]

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1. Centre de Recherches sur les Tres Basses Temperatures, Laboratoire Associe a lUniversite Joseph Fourier, Centre National de la Recherche Scientifique, Boite Postale 166, 38042, Grenoble Cedex 9 (France)

The question of whether the pseudogap in high-T{sub c} cuprates is related to superconducting precursor effects or to the existence of extrinsic bosonic massive excitations is investigated on the basis of the boson-fermion model. The characteristic three-peak structure of the electronic spectral function and the temperature-dependent Fermi vector derived here are signatures for a two-component scenario which can be tested by angle-resolved photoemission spectroscopy and inverse photoemission spectroscopy experiments. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 632616
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 13 Vol. 56; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BAND THEORY
BOSONS
CUPRATES
ENERGY GAP
FERMIONS
FLUCTUATIONS
HIGH-TC SUPERCONDUCTORS
TRANSITION TEMPERATURE