Electron-lattice interaction and its impact on high Tc superconductivity

TL;DR

This paper reviews how electron-lattice interactions influence high-temperature superconductivity, highlighting experimental evidence of lattice effects on electron pairing and proposing experiments to identify the pairing boson.

Contribution

It discusses the role of electron-lattice interactions in high Tc superconductors and suggests experimental approaches to determine the pairing mechanism.

Findings

Lattice interactions significantly impact electron pairing in high Tc cuprates.

Electron-lattice interaction strength increases in nanosystems due to higher density of states.

Experimental results support the strong influence of lattice on superconductivity.

Abstract

In this Colloquium, the main features of the electron-lattice interaction are discussed and high values of the critical temperature up to room temperature could be provided. While the issue of the mechanism of superconductivity in the high Tc cuprates continues to be controversial, one can state that there have been many experimental results demonstrating that the lattice makes a strong impact on the pairing of electrons. The polaronic nature of the carriers is also a manifestation of strong electron-lattice interaction. One can propose an experiment that allows an unambiguous determination of the intermediate boson (phonon, magnon, exciton, etc.) which provides the pairing. The electron-lattice interaction increases for nanosystems, and this is due to an effective increase in the density of states.