Chemical nature of the pairing of holes in high-temperature superconductors
Dzyaloshinskii I. E.
Some crude arguments which point toward a purely electronic (chemical) mechanism for the pairing of/г-holes at oxygen are offered. These ideas stem from the fact that reactions of the type (О ~ radical) (the peroxide 02~ ~) -* (О ~ ~ ion + 02 molecule) occur in the gas phase.