An approach for studying the influence of uniaxial strain (pressure) on the temperature of the Bose-Einstein condensation of intersite bipolarons: possible implementation for RBa${}_2$Cu${}_3$O${}_{7-\delta }$ cuprates

Abstract

A universal approach is proposed to study the influence of strain (pressure) on the temperature of Bose-Einstein condensation of intersite bipolarons within the extended Holstein model. It is shown that uniaxial strain (pressure) derivatives of the temperature of such a Bose-Einstein condensation strongly depend on the arrangement of ions in the lattice. In particular, they may be positive or negative. A connection between the theoretically obtained results, along with the experimental data, on the influence of uniaxial pressure (strain) on $T_c$ of RBa${}_2$Cu${}_3$O${}_{7-\delta }$ family cuprates is discussed.

18 pages, 3 figures

References in corpus (6)

• Interplay between electron-phonon and Coulomb interactions in cuprates
• Quantum Monte Carlo and variational approaches to the Holstein model
• Bipolarons from long range interactions: Singlet and triplet pairs in the screened Hubbard-Froehlich model on the chain
• An effect of the uniaxial strain on the temperature of Bose-Einstein condensation of the intersite bipolarons
• Effect of screening of the electron-phonon interaction on mass renormalization and optical conductivity of the Extended Holstein model polarons
• Mass of a lattice polaron from extended Holstein model using Yukawa potential

Cited by in corpus (1)

• Effect of screening of the electron-phonon interaction on the temperature of Bose-Einstein condensation of intersite bipolarons