Novel Isotope Effects on the Pairing Pseudogap in High-$T_c$ Cuprates: Evidences for Polaronic Metal and Precursor BCS-Like Pairing of Large Polarons

S. Dzhumanov, O. K. Ganiev, Sh. S. Djumanov

We have studied the novel isotope effects on the pairing pseudogap in underdoped and optimally doped cuprates within the large-polaron model and two non-standard BCS-like approache…