A Possible Mechanism for Pseudo-Gap in Cuprates

TL;DR

This paper proposes a boson-fermion model to explain the pseudo-gap phenomenon in cuprates, attributing it to uncondensed pairs and their quasi-two-dimensional structure, providing insights into the normal phase behavior.

Contribution

It introduces a novel boson-fermion framework to explain the pseudo-gap in cuprates, emphasizing the role of uncondensed pairs and layered crystal structure.

Findings

Pseudo-gap arises from uncondensed pairs in the boson-fermion model.

Quasi-two-dimensional structure influences pseudo-gap formation.

Model aligns with recent experimental observations.

Abstract

The electron spectrum in the normal phase of cuprates is analyzed in terms of the boson-fermion model. It is argued that the existence of the uncondensed pairs and the quasi-two-dimensional nature of the crystal structure are responsible for the pseudo-gap above T_C observed recently.