Due to the proximity of the antiferromagnetic phase, the strong electronic interactions, the appearance of a pseudogap phenomenon etc., the electronic phase is considered an exotic, a non-Fermi Liquid and the coupling mechanism for Cooper pairs strange. However, led by novel experimental results, that are obtained within my ERC project, a phenomenological model was developed. It comprehensively captures key unconventional experimental results, including the temperature and the doping dependence of the pseudogap phenomenon, the strange-metal linear temperature dependence of the planar resistivity, and the doping dependence of the superfluid density. The experimental results, obtained within the project, and the success and simplicity of the presented model essentially confirmed the main hypotheses of the project. Namely:
•the charge carriers which couple to give high temperature superconductivity follow the well-known Fermi- liquid behavior;
•the pseudogap phenomenon corresponds to a gradual (Mott-like) localization of exactly ONE charge carrier per unit cell;
•and the “Glue” for pairing stems from a bosonic excitation of ONE localized carrier leading to a novel excitonic mechanism for SC.