Kondo - exchange in the CuO plane as the long sought interaction determining in cuprates
arXiv:2303.18235 · doi:10.1016/j.physb.2025.417509
Abstract
The well-known Pavarini et al. [Phys. Rev. Lett. 87, 047003 (2001)] correlation between the critical temperature and the shape of the Fermi contour of the optimally hole-doped cuprates is explained within the framework of the BCS theory with Kondo exchange interaction incorporated as a pairing mechanism. The strong influence of the relative position of the Cu4 level with respect to the Cu3 level on the critical temperature reveals the importance of the - hybridization of the conduction band. This hybridization is proportional to the - exchange scattering amplitude between the conduction electrons -- the mechanism of -wave pairing in the CuO plane. In other words the Kondo interaction considered as a pairing mechanism in the CuO plane gives a natural explanation of the correlation between the critical temperature and the shape of the Fermi contour. This result suggests that the long-sought pairing mechanism in high- superconducting cuprates has possibly been found and that the Kondo exchange interaction as a property of strongly correlated quantum matter deserves further attention in the physics of layered cuprates. To test the developed theoretical scheme, we explored in detail the recent results of the scanned Josephson modulation microscopy experiment of the modulation of the order parameter due to apex distance super-modulation. Our analysis shows a satisfactory agreement between our theory and the named experiment.
23 pages, 6 figures, 2 tables, 89 refs; final published version with small corrections and source code included
References in corpus (13)
- On the Electron Pairing Mechanism of Copper-Oxide High Temperature Superconductivity
- Ultrafast quenching of electron-boson interaction and superconducting gap in a cuprate superconductor
- Superconductivity in high- and related strongly correlated systems from variational perspective: Beyond mean field theory
- Saddle-point van Hove singularity and the phase diagram of high-Tc cuprates
- Time-resolved ARPES on cuprates: Tracking the low-energy electrodynamics in the time domain
- Superfluid density and two-component conductivity in hole-doped cuprates
- Superconductivity of overdoped cuprates: the modern face of the ancestral two-electron exchange
- Revised phase diagram of the high- cuprate superconductor Pb-doped BiSrCaCuO revealed by anisotropic transport measurements
- A different NMR view of cuprate superconductors
- Hot spots along the Fermi contour of high- cuprates analyzed by - exchange interaction
- Possible zero sound in layered perovskites with ferromagnetic - exchange interaction
- Dynamic Competition between Cooper-Pair and Spin-Density-Wave Condensation
- Correlation between T_c and the Cu 4s level reveals the mechanism of high-temperature superconductivity