Pseudogap isotope effect as a probe of bipolaron mechanism in high temperature superconductors

Abstract

A theory of a pseudogap phase of high-temperature superconductors where current carriers are translation invariant bipolarons is developed. A temperature T* of a transition from a pseudogap phase to a normal one is calculated. For the temperature of a transition to the pseudogap phase, the isotope coefficient is found. It is shown that the results obtained, in particular, the possibility of negative values of the isotope coefficient are consistent with the experiment. New experiments on the influence of the magnetic field on the isotope coefficient are proposed.

arXiv commentSlightly edited and enhanced version. Published in Materials. 8 pages, 2 figures

References in corpus (25)

• The pseudogap in high-temperature superconductors: an experimental survey
• The pseudogap: friend or foe of high Tc?
• Two Gaps Make a High Temperature Superconductor?
• Phase fluctuations in a strongly disordered s-wave superconductor close to the metal-insulator transition
• Pseudogap in a thin film of a conventional superconductor
• Pseudogap in High - Temperature Superconductors
• Pseudogap from ARPES experiment: three gaps in cuprates and topological superconductivity
• ARPES studies of cuprate Fermiology: superconductivity, pseudogap, and quasiparticle dynamics
• Competition between spin density wave order and superconductivity in the underdoped cuprates
• A Possible Phononic Mechanism for $d_{x^2-y^2}$-Superconductivity in the Presence of Short-Range AF Correlations
• Relation of Extended Van Hove Singularities to High-Temperature Superconductivity within Strong-Coupling Theory
• Modern trends in Superconductivity and Superfluidity. Chapters 11, 13
• Anomalous isotope effect near a 2.5 Lifshitz transition in a multi-band multi-condensate superconductor made of a superlattice of stripes
• Thermodynamics and Phase Diagram of High Temperature Superconductors
• The Isotope Effect in d-Wave Superconductors
• Ultrafast carrier localisation in the pseudogap state of cuprate superconductors from coherent quench experiments
• Electron-phonon coupling induced pseudogap and the superconducting transition in Ba0.67K0.33BiO3
• Evidence for strong lattice effects as revealed from huge unconventional oxygen isotope effects on the pseudogap temperature in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Superconducting properties of a nonideal bipolaron gas
• Electronic correlations, electron-phonon interaction, and isotope effect in high-Tc cuprates
• Translational-invariant bipolarons and superconductivity
• Superconducting properties of 3D low-density TI-bipolaron gas
• Superconducting properties of 3D low-density TI-bipolaron gas in magnetic field
• Observation of pseudogap in MgB2
• Isotope effect in the translation-invariant bipolaron theory of high-temperature superconductivity