The pseudogap in underdoped high Tc superconductors in the framework of the Boson Fermion model

Details The pseudogap in underdoped high Tc superconductors in the framework of the Boson Fermion model The pseudogap in underdoped high Tc superconductors in the framework of the Boson Fermion model

1997-02-05

arxiv.org/abs/cond-mat/9702042v3

Phys. Rev. B, 56 (1997) 8330

Physics

Condensed Matter

Strongly Correlated Electrons

revtex version with 3 eps figures. Revised version to appear in Phys. Rev. B. 4 c programs added

Scientific paper

10.1103/PhysRevB.56.8330

The question of whether the pseudogap in high $T_c$ cuprates is related to super conducting 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 ARPES and BIS experiments.

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