The pseudogap in underdoped high Tc superconductors in the framework of the Boson Fermion model
J. Ranninger, J. M. Robin
Abstract
The question of whether the pseudogap in high Tc 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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